would you really advice it? i'm reading some reviews and they really don't use nice words on it... (and for that price i could buy a dbx266)
also, i'd really love to do some sidechining, is it possible with a 3630?
+1 for DBX266 - I know it's rack, but it's sweet as. Or, keep your eye on ebay for a JoeMeek MC2.
TBH, reading your first post again, I think your budget is a bit too tight. You're really only in the market for a cheap bit of tat, or perhaps a pair of cheap stop boxes, like Line 6 Constrictor.
EDIT: A quick Google brought up Behringer MiniCom COM800, there may be other Behringer options in budget. This falls in the cheap tat category, but with your budget I'm not sure you have many options