hey DonG:
Check out this web site:
www.tomshardware.com
This web site has a lot of good information. Most of it's over my head too. But the kids know a lot about this stuff. My uncle has a kid that cuts his grass that helps him with his Dell computer.
So if you have a neighbor kid that is into computer you are half way there.
You can have a computer built locally if you can find a good shop. They may be able to get you up and running with a new system for 1/2 of what Dell will charge. And they can also help you update your present computer.
Take your time and do the research and if you have any detailed questions just hollor. I will try to help if I can. I am no expert and have gotten a lot of my knowledge for experts on the gaming sites. I learned a lot about computers so that I could play computer games LOL But I seemed to spend more time tweaking my computer than actually playing games.