I just got back from Circuit City and looking at the e805... I am very impressed!

I am very seriously considering purchasing this device. I need to do a little research on it... It all depends on how much more stuff I would have to buy to get it to the same point I am now with my Ipa 3835.
Vaja Case -- Need to look to see if they have cases for the Toshiba.
Software -- plenty of software (no problems here)
What else do I need to worry about so that I don't purchase this and have buyers remorse? :?