I will STRONGLY second the recommendation for both Avatar and Crate for low cost and high quality. What I like about my Crate is that it doesn't have a one-sound-signature bullshit thing going on - it can be high-mid heavy like a Marshall, low-mid focused like a Mesa, or anywhere in between, and the speakers basically shove that through without trying to be a 'classic' or 'signature' or anything like that; it basically just does what your EQ section tells it to do and doesn't try and enhance or tone down parts of your sound. The frequency response is just right for recording - I get tons of bite out of those speakers when I need it but I never have to worry about the cheap-shit fizzy sound that happen in so many other 'budget' amps.
If, however, you just MUST have those G12T-75s or those 30s or Greenbacks or what-have-you, Avatars work great too.
Either way, you're getting stuff that will work with you - when I got my Crate I was expecting it to be another step that I'd move on from later, but I've basically found something that I could stick with for under $300 (combo 212) and use just about anywhere.
Jeff