Ok, so lets say your budget is around $500...i don't know if you've posted a budget yet.
IMO most of the brand new stuff in that range isn't going to be great. The nighttrain is ok, the epi is ok (highly modable, and loads of fun to work with, but stock nothing too special).
I'd go the used route for sure. If you have a craigslist or something similar, you can grab a decent 1x12 (maybe somekind of vintage 30ish speaker...or similiar quality) for around $150. You can find tiny terrors for around $300 used. That'd be a great combination for $450. Old SF fenders can be found for under $500 sometimes. A DRRI is a good find in that range too. The peavey club something (i forget the name exactly) is great, and carvin has a 50w that I've seen used for around $500 that is also super cool (maybe someone can help me with the names). But, that's what I'd be looking for in the $500 range.
I would skip pretty much anything lower than $500 because it's mostly not that great, and you'll find yourself wanting something more in the near future.