I cant see how Vista can run better than XP on your hardware, Vista is pretty much XP with all the eye candy that OSX has had for a few years.
I think Vista might seem to run smoother now as most folk break XP before they actually start using it.
Most people install and remove things at the drop of a hat.
You take a fresh clean install of XP and its pretty fast and stable until freeware junk is installed where the programmers are paid to roll out software as quick as possible and don't really care about the code.
Give it a week or 2 and your Vista setup will also be broke.
Typical XP installation
Install XP.
Install a few applications.
Remove a few applications because they don't like them.
XP registry half screwed up already slowing down the machine.
Install XP service pack 2.
Install MSN icons.
Install some crappy freeware to rip audio from the divx they downloaded.
Remove some crappy freeware.
XP well and truly shafted by now.
I think Vista might seem to run smoother now as most folk break XP before they actually start using it.
Most people install and remove things at the drop of a hat.
You take a fresh clean install of XP and its pretty fast and stable until freeware junk is installed where the programmers are paid to roll out software as quick as possible and don't really care about the code.
Give it a week or 2 and your Vista setup will also be broke.
Typical XP installation
Install XP.
Install a few applications.
Remove a few applications because they don't like them.
XP registry half screwed up already slowing down the machine.
Install XP service pack 2.
Install MSN icons.
Install some crappy freeware to rip audio from the divx they downloaded.
Remove some crappy freeware.
XP well and truly shafted by now.