The curve is a great device-i don't hold a lot of apps-mainly news,Poynt,CB(of course-lol) and mobipocket reader. I don't use mine for business so I can't comment on that sorry. But it is a strong solid device-plenty of CB users have curves as well and I'm sure will have more input than I do as far as diff apps and what not. You won't be disappointed if you switch to a curve! Good luck with your decision!
Posted from my CrackBerry at wapforums.crackberry.com
My first BB was an 8703e and my next after that was a Curve. I don't think you'd be too dissapointed. Virtually the same OS so nothing to get used to. Few more features here and there. Smaller and pretty easy to type on.
Ah the 8700 series, I had an 8700c as my 2nd BB (after a 7290). With the curve you get more memory, a camera, better media feature, PLUS all the great stuff you are already used to on your 8703 (that is email & data)