I swapped over to using Google Apps for $100/year (2 users, me and me)
Moving all my e-mail over now, website over to "sites"...
Files storage is nice.
I've discovered some thing in my own, I didn't realize where in the version we have for work.
In all reality... exceptionally nice, especially compared to Early 2008 when we (at work) moved to Google Apps/Mail. Nice amount of features keep getting added when I'm not looking.
I think it is worth the $8/month.