It sounds like a Line 6 Spider II would fit your budget and give you the most bang for your buck. With a Spider II you will get a ton of effects as well as a nice sounding amp modeler. I would suggest either the 2x10 or the 2x12 depending on how much you want to spend. It would be a nice amp for you since you want effects... and an amp. Why not get both at the same time for cheaper.