I'm almost completely off Google (started my exodus late last year) and it wasn't nearly as difficult as I thought it'd be.
I moved into the Microsoft ecosystem.
It's all there. Bing is surprisingly good, SkyDrive surpasses even Dropbox and Office 365 w/ OneNote is the best office suite available. I even got a Windows Phone 8 (yeah, I can get carried away sometimes).
The point is, there's a whole new world out there that's sans Google, and it's probably better than you imagine it to be.