There's little reason to upgrade to Vista. It's a warmed over XP, with some new eye candy. Eye candy that requires some pretty significant graphics processing power and memory, and still doesn't even do as good a job as what Apple has done with OS X for years with significantly less powerful hardware.
If you're happy with what you've got now, don't bother with the upgrade. Only if there are some specific features of Vista you're interested in, and those features are worth the upgrade price to you, would I recommend even considering it.
I just got the Vista upgrade for an HP Pavilion I bought in early January. I use Firefox, Zone Alarm Pro, Nod, JV PowerTools, Spybot, and Ad-Aware. I am relatively satisfied with the system performance under XP Media Center 2005. Is there any real reason to upgrade to Vista? Will any of what I use now no longer work? Has Vista got the bugs out, I mean? Any advice is helpful.
System Info:
Total Physical Memory 2,048.00 MB
Available Physical Memory 1.34 GB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 3.84 GB
Page File C:\pagefile.sys

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