How cheap? Have you considered one of the better used pro amps like Crown, Qsc, etc. Or, you can pick up a pretty nice Adcom 555 on Audiogon for a reasonable price, too. Not real sure what you're specifically looking for. You usually have to pay some serious $$ for the better amps. But, if you're looking to spend up to $500, you should be able to pick up a pretty good used amp on A'gon.
The TLP-1 is a nice SS linestage preamp, too.