Watts arn't too much of an issue...50 and 100 watts is tough to discern by ear.

I don't know your price range so i'll post the best combos for each one(I'll assume you want a 2x12 combo...plenty of power to push air).

Line 6 spider 1x12 200$

Rocktron 2x8 200$

H and K 1x12 300$

Carvin 2x12 320$

Ibanez Toneblaster 2x12 370$

I would go with the carvin,but thats just me.

Line6 and peavey amps all rock above 500$