Time for Upgrade - Which Model ?

Hi

I currently have a Curve 8320 and love it, now next month will be free upgrade time for me and i am looking at either the 8900 curve or the bold...

I know the technical differences and at present use UMA on my current curve which the bold doesnt have (as its 3G) but at present i spend more time hating UMA due to the bad quality and general frustration with it not working well.

So my question

Has anyone on here got both and/or used both ?

If so opinions please :)

Thanks

Dave