I own a Digitech RP20 Multi-effects processor(floorboard) and it sounds great when I plug my headphones in and play something. However, my little Peavy Blazer amp cannot handle it at all. I'm looking for some more power and also want to take advantage of the RPG20's stereo capabilities. I was looking into getting something like the Marshall 8008 Valvestate Power Amp and perhaps the Marshall 1936 2x12 Cabinet. I'm looking to spend about $200 on the power amp, and up to about $550 on the cabinet. I don't know much about power amps or cabinets so I would appreciate any suggestions.