I need something under $350
Something loud enough to be heard over drums at practice/small gigs
I play mostly Pop-Punk/Indie (blink, Boxcar, +44, All Time Low, Taking Back Sunday)

Any help is greatly appreciated

Buy you a small tube amp. I got me a Peavey classic 30 off ebay for 360.00. Proably the best thing ive bought since buying my first guitar. Trust me tubes are really that much better.
Epiphone LP Standard
Peavey Classic 30
Marshall Mg100DFX
Tubes really ARE that much better.
If anything, I'd save up a little more than $350, and buy something reliable and nice.
You might be able to pick up a Peavey Valveking combo for like $400, not sure.
They're pretty pricey new in Australia, but America seems to get much cheaper gear.
If not, as long as you stay away from Line 6 Spiders, you should be fine.

Member of the Laney Cult