Your computer is 4 years old? It must have been a lot of money! His computer specs are as follows:
1.8ghz AMD athlon processor (single core)
512mb of ram (DDR)
80GB SATA hard disk
it has Windows XP SP3 now.
I bought a desktop brand new a little over a year ago and its specs are pretty comparable. It cost $700!
With mine, with what you've put up so far, add in a Samsung Monitor and a Logitech keyboard (It holds a nice rest at the bottom that makes it easy for me to go for quite a bit of time without stopping on a typing spree. Without it, I could find myself resting every 15 minutes if I had to do something long in a short amount of time.) that came with a wired mouse. (The last item was changed several months back to a Microsoft 5-button with scroll wheel wireless mouse just because the wired stopped working.)
Whole dang thing, along with free emergency service for life by the company that made it, cost me a whopping $1500.

I'd say it was worth EVERY penny.

:
I'm glad you like it. It was a ***** to find drivers for. It was obviously custom built. You've got a decent setup. Way more than you need for XP lite SP3. I would recommend a ram upgrade since your computers maximum memory expansion is 4gb though. It's really cheap to upgrade it to 4gb(4096mb) as opposed to your 512mb. Honestly though you can't live with 512mb of ram. You need at least 2gb this day and age. Your computer should be fine for a long time now though. I'm glad I was able to help. If we ever have to do this again, a better webcam on your part would be greatly appreciated. 
I've got quite a bit of extra cash on me, so I'll take your advice and get some more ram. Hmm, I'm guessing Best Buy would be best for me to go to.
Yeah, you did. I may not be certified, but I really don't need to be since I work for myself. I only need certification if I wanted to do something like be a computer admin for a school or something. 
Now my parents are amazed with what you've done with my computer. (Even the very nice custom made LBT Desktop you provided me with. Definitely satisfies the LBT fan in me.) I don't think they'll be bothering me about you EVER again.
