I'm currently running the following set-up.

AMD AthlonXP 2500+ Barton
ASUS A7N8X Deluxe Motherboard
1GB Corsair XMS PC3200 CAS2 2-2-2-6
120GB WD 7200RPM HD
250GB Seagate 7200RPM HD
ATI Radeon 9800PRO 128MB
Antec 480w PSU

I was thinking of upgrading to an Athlon64 3200+ Venice, but I can't decide if I'd really see that much of a performance boost over the Barton, or if it's as easy to OC as the Barton. Of course, I'd also have to get a new motherboard, and I was thinking of getting the BIOSTAR TForce6100-939, which is a budget board, but has a lot of great reviews. I think my 1GB of memory should be fine for now. I mostly use my computer for gaming and web browsing. I don't really go nuts with gaming, so having the BEST graphics isn't really too much of a concern. I want the best speed/performance. Any suggestions for upgrading? Or thoughts on the upgrades I want to purchase? Any input would be appreciated.

Hi RollingStoned, welcome to the PCHF!

Sorry noone has gotten back to you in the last couple of days, but never fear...I am here

the 2500+ barton core was a great CPU...the 3200+ venice was a great CPU...and it still competes. If it's in your budget, I'd suggest looking at a dual core (X2) cpu, as that's the way technology is moving, and you can easily get a 3800+ X2 from 2ghz, to 2.7ghz running under 40deg and stable (with a decent cooler).

With the motherboard...I'd suggest going for something a little more well known. The reviews might be great, but what is their support like? How often are the BIOS updates released? Has anyone had any issues with warranties? I recommend ASUS, Abit, MSI, DFI or Gigabyte - they're all gamer designed boards, and with the exception of MSI are really good overclocking boards. (again, this is all if it's in your budget).

Your memory - it's 1gb of low latency RAM...that's great, you won't need to touch that.
Your hard drives are fine as well.

Powersupply may be an issue. How long have you had it for? PSU's lose 30% (i think that's the right %) every year since it's made. so a 1000watt psu would go down to 700watt a year later. (someone correct me if i'm wrong on that % please) And also Antec have been recieving alot of bad buzz lately. If you decide to upgrade that, look at getting another brand, thermaltake or silverstone are exceptional.

Video card - depending on what kind of mobo you get, if it's AGP (which isn't recommended) then you could get a 7800GS which is the fastest nvidia card you can get for AGP...or you can get a x1600 from ATI.
If you upgrade to PCI-E, if you dont get an SLI board, then i suggest getting an ATI card, 2 reasons. Firstly: ATI have much much better colour definition then nVidia. Secondly: AMD have just bought ATI, so there will be much better communication between these cards in the future.

That's my advice, if you need clarification on anything - please don't hesitate to ask

No problem Sir Trews...AGP = old now. Old technology.

PCI-E was only thought up because it was cheaper to make, but it's what everyone is using now, and within 2 years, with this ATI/AMD merger, video cards will be attached to the CPU somehow...at least that's what's rumoured

AGP cards are no longer being manufactured.