Thanks for the recommendations guys! I ended up buying a used Peavey Valveking from Guitar Center Used online. If it doesn't work properly, I will probably go with the Spider IV 150 212. I have tried the Spider IV 150 212 at my local Guitar Center, and it sounds pretty cool, but when cranked up to gigging levels it doesn't sound very good. Do you guys think this has to do with the stock speakers on the Spider IV 150 212?