The Presario C500T specs:
512mb DDR2 RamProcessor - Intel Celeron 1.73 GhzOperating System - Microsoft Windows Vista Home Premium1.54 Wide screenDVD/CD Drives
The Compaq Presario C500T is a nice laptop. Ever since I got it, I've been using it throughout my daily work as a backup for most of my files. I suggest you upgrade the ram to at LEAST 1GB of ram because everyone knows that Vista runs up a lot of it.
I bought this for around $450 and it has its uses even up until now. This is not a laptop for gamers but for working needs. The CPU holds enough for a decent working project. I suggest you buy this for non-gaming related uses. Overall, It's a nice notebook.
Bad thing I found was the Battery Life didn't last too long. You have to recharge it once in a while or keep using the adaptor.
This laptop isn't the fastest on the market so I do recommend better ones if you are a busy person.
It's more of an old model so it tends to sell cheaper, but slower.