My first computer cost about $3200 US dollars. It was a gift for my 16th birthday. Dell 8200, with at the time the best monitor you could get, I forget how big it was but it alone was (I think 24 inches) like $600, big old CRT monitor (before LCDs)
At the time the computer was about as high end as you could get for a desktop from Dell.
The specs where
Pentium 4 1.8GHZ
Nvidia Geforce 2 graphics
256MB RAMBUS RAM
5.1 surround sound card
40 GB hard drive
What would I have done differently? Well, this was back when I was younger and didn't really appreciate the fact that overbuying on computers to "futureproof" them just ended up costing you more money for less performance in the long run. That computer was cream of the crop when it was new, but I suffered with that thing for 9 years.. And yes I mean suffer, by the last 2 years it wasn't even capable of running Runescape at the lowest detail settings.