Thanks for the comment about my playing.
The Digitech is fine, but sometimes it can sound cheesy. Line6 have great tones, which respond as though you were playing through a real amp, listen to the response I get on this song during the first solo;
Time Wounds All Heels
If you don't feel comfortable about the RP250, then try before you buy. I bought the 350 on a a whim, and I'm glad I did as it set me off recording, but apart from the whammy, the wah wah amd the bass sound I can get from my 6-string, I could live without it.
Hope I've helped a little,
Ian