I have had 7 dedicated boxes with Reflected Networks for a little over 2 years and in my opinion, they are one of the very best.
Top notch service and support.
I can remember one item in particular. 3 hours after a major php security hole was announced, I emailed support and asked them to upgrade php on all my boxes with the fix.
Got a response back two minutes later "We already did that 2 1/2 hours ago"
I couldn't be happier.
http://www.reflected.net