Spaces/padding between word press widgets question
 

Trying to put a little space between widgets without messing stuff up.
The spaces I have been able to put in are actual code in the widgets as
<div style="margin-top: 100px;">
at top in widget itself. but too much of that and the theme wacks out.
Tried to adjust a lot of stuff (padding/spacing etc) in css style sheet but just cant figure the right item needed.
this is the script area from my css style sheet..
What and where do I need to add/change to achieve a bit of space between widgets??

.sidebar { width: 184px; float: left; }
.sidebar h3 { width: 0px; height: 31px; margin: 14px 0 3px 0; font-size: 16px; text-transform: uppercase; text-indent: 10px; line-height: 29px; color: #ffffff; background: url(images/title-bg-left.png) no-repeat left top; }
.sidebar h3 .rsswidget { color: #ffffff; text-decoration: none; }
.sidebar ul li .rsswidget { width: 184px; height: 27px; line-height: 24px; display: block; overflow: hidden; }
.sidebar ul li .rss-date { width: 184px; line-height: 16px; display: block; background-color: #201f20; text-indent: 14px; font-size: 11px; font-style: italic; }
.sidebar ul li .rssSummary { width: 164px; padding: 0 10px 10px 10px; text-indent: 0; line-height: 16px; }
.sidebar ul li { width: 184px; color: #ffffff; line-height: 27px; text-indent: 14px; background: url(images/left-menu-bg.png) repeat-y left top; }
.sidebar ul li a { font-size: 12px; font-weight: normal; }
.sidebar ul li.cat-item a { font-size: 14px; font-weight: bold; }
.sidebar ul li.cat-item a:hover { color: #ffffff; }
.sidebar ul li.cat-item ul li { width: 184px; height: 27px; color: #ffffff; line-height: 27px; text-indent: 24px; background: url(images/left-menu-bg-2.png) repeat-y left top; }
.sidebar ul li.cat-item ul li a { font-size: 12px; font-weight: normal; }
.sidebar div { width: 184px; background-color: #201f20; }
.sidebar div p { padding: 10px; margin: 0; }
.sidebar div p a { color: #fed813; }
.sidebar select { width: 156px; }
.sidebar .tagcloud { width: 164px; padding: 10px; }
.sidebar #wp-calendar { width: 164px; text-align: center; }
.sidebar #wp-calendar a { color: #fed813; }
.sidebar .searchform div { width: 164px; }
.sidebar .searchform #s { width: 128px; text-shadow: 1px 1px #000000; line-height: 29px; }
.sidebar #recentcomments ul li { font-size: 12px; font-weight: normal; }

#wp-calendar { margin: 10px; }

.searchform div { padding: 10px; }
.searchform div #s { height: 29px; float: left; border: 0; background: url(images/search-form.png) no-repeat left top; padding: 0 0 0 4px; color: #cdcdcd; text-shadow: 1px 1px #000000; }
.searchform div #searchsubmit { width: 32px; height: 29px; float: left; border: 0; background: url(images/search-button.png) no-repeat left top; cursor: pointer; }

.adsbar { width: 304px; float: left; }
.adsbar h3 { width: 304px; height: 31px; margin: 14px 0 3px 0; font-size: 16px; text-transform: uppercase; text-indent: 10px; line-height: 29px; color: #ffffff; background: url(images/title-bg-right.png) no-repeat left top; }
.adsbar h3 .rsswidget { color: #ffffff; text-decoration: none; }
.adsbar ul li .rsswidget { width: 304px; height: 27px; display: block; overflow: hidden; }
.adsbar ul li .rss-date { width: 304px; line-height: 16px; display: block; background-color: #201f20; text-indent: 14px; font-size: 11px; font-style: italic; }
.adsbar ul li .rssSummary { width: 284px; padding: 0 10px 10px 10px; text-indent: 0; line-height: 16px; }
.adsbar ul li { width: 304px; color: #ffffff; line-height: 27px; text-indent: 14px; background: url(images/right-menu-bg.png) repeat-y left top; }
.adsbar ul li a { font-size: 12px; font-weight: normal; }
.adsbar ul li.cat-item a { font-size: 14px; font-weight: bold; }
.adsbar ul li.cat-item ul li { width: 304px; height: 27px; color: #ffffff; line-height: 27px; text-indent: 24px; background: url(images/right-menu-bg-2.png) repeat-y left top; }
.adsbar ul li.cat-item ul li a { font-size: 12px; font-weight: normal; }
.adsbar ul li a:hover { color: #ffffff; }
.adsbar .ad300x250 { width: 300px; height: 250px; background-color: #000000; border: 2px solid #201f20; border-top: 0; }
.adsbar .adfirst { border-top: 2px solid #201f20; }
.adsbar div { width: 304px; background-color: #201f20; }
.adsbar div p { padding: 10px; margin: 0; }
.adsbar div p a { color: #fed813; }
.adsbar div .block-inner { width: 284px; margin: 0 10px; }
.adsbar .tagcloud { width: 284px; padding: 10px; }
.adsbar .tagcloud a { font-weight: bold; }
.adsbar #wp-calendar { width: 284px; text-align: center; }
.adsbar #wp-calendar a { color: #fed813; }
.adsbar .searchform div { width: 284px; }
.adsbar .searchform #s { width: 248px; text-shadow: 1px 1px #000000; line-height: 29px; }
.adsbar #recentcomments ul li { font-size: 12px; font-weight: normal; }