Silversurfer is right on...
I've tried several foamies and the one I like the best is the Yak 54f from Horizon. I haven't gotten to trying much 3D with my gasser yet, but the little Yak reminds me a lot of my Funtana 90 in the way it handles. Just make sure you don't scrimp on the components as noted above, a good Outrunner motor, ESC to handle it and Li-Poly battery will give you a lot of good experience. Depending on a few variables, you could expect to pay around $250 to $300 for the components plus whatever airframe you decide on
AND, it's a lot of fun with not worrying about how much the thing cost...