what video conversion/tools do you use?
 

I will start what I have bought and used.

frame shots
http://www.frame-shots.com

video thumbnails maker
http://www.videohelp.com/tools/Video_Thumbnails_Maker

video charge
http://www.videocharge.com/Products/vc/main.php

video charge studio
http://www.videocharge.com/Products/vcs/details.php

adobe flash cs4
http://www.adobe.com/products/flash/

boilsoft video splitter
http://www.boilsoft.com/videosplitter/

boilsoft video joiner
http://www.boilsoft.com/avi-mpeg-rm-joiner.html

ultra video joiner
http://www.aone-soft.com/joiner.htm

ultra video splitter
http://www.aone-soft.com/splitter.htm

ultra video converter
http://www.aone-media.com/videoconverter.htm

aimersoft video converter ultimate
http://www.aimersoft.com/video-converter-ultimate.html

all are good products, spam what you have bought/used, paid or free

Flash CS4
Final Cut

Mac systems.

ImTOO MPEG Encoder. Besides some annoying 'bugs' it works fine.

ACS Video Converter
Canopus Pro Coder
MPEG Streamclip
:2 cents:

premiere pro cs4/media encoder.

sorenson squeeze is the tool fr compression i use 5.1 there is 6 but i hear really bad things about it. Try it for flv and mp4 and other formats you can want to compress or make ready for online download or streaming.

Canopus Procoder 3
Squeeze 6
Media Encoder CS4

for converting I use Total Video Converter

I've been using Video Charge. Chopping videos, merging videos, and converting videos. It always seemed to work fine I thought but lately have been running into some problems with my wmv output files. Anyone else running into trouble's or have settings you can recommend? Not sure what I'm doing wrong.

Final Cut Pro Studio HD
frame shots
flash cs4
ffmpeg flvtool2

Got anything lightweight for simple watermarking?

Adobe Premiere
Video Charge
Sorenson Squeeze 6
XL Cleaner
Frame Shots

Video Charge.

Right now, the only things I use are ffmpeg (3gp conversion) and dpgconv-9.py (dpg conversion, uses mencoder and mplayer). Building kdenlive right now. I don't use Windows and I don't use Mac. :)