Hey I need a new amp that I culd use on stage or at a small local show.

Right now all i've got is a Fender Frontman 25R (25 Watt). I really do like the distortion and this little thing actually doesnt get drowned by the drums, but I'm gonna get more serious so i need a more serious amp. I play alot of metal and hard rock, but of course enjoy some good sounding solos (which i definately need to get better at by the way), and i need something that can play without any distrotion or lead and without giving bad feedback or blowing itself. I would really really like to keep it under $300 (i'm ok with used equipment) but if that isn't possible just get me as close to that price as possible. Help please?