I used a 350H for years and it was fine until I needed more juice. You can get an SVT 6-pro (tube preamp and drivers, 1100 watt @ 4ohm power amp) for about $500. You could also do separate pre and power amp setups as others have suggested. A dedicated power amp often gives you the opportunity to get 2 channels bridgeable, which makes a lot of flexibility for future setups. Depends on what you want to do and how much amp you really need!
