No. I am not just a regular vista hater without reasons to back my argument so here goes some actual input,
first Pros of Vista:
DirectX10
desktop search
aero (if you want to lose 40% performance for a little transparency)
Shiny
Cons of Vista:
system resource hog
desktop search no longer unique, in XP patch
poor gaming performance
64 bit version still limited (as far as ram and flash)
still buggy
So for now my vote is to stay with XP until there are a lot more patches and updates to Vista and since Microsoft is taking a lot of the features and adding them to XP I am especially hesitant.
Further note: If you do go ahead and get Vista buy yourself 2 gigs more of ram for sure as vista will use 1 of them just for running the OS and mabey 1.5 with aero on

other than that spec wise your system seems able to handle it at first glance though you never know for sure until you try to install whether the hardware will be compatible...