I want to upgrade my computer but I don't know what to get.?

I have read a few of the answers on here but I am still not sure what to get. I have a 80GB HD now and want to add more space, but I still have over 40GB left on my current HD. My computer runs quite slow considering, and I am planning to upgrade my memory from 512mb to 1GB, does anyone think that it might be enough to just upgrade the memory? I use the computer for Music, Video, lots of pictures and some games. I want to be able to do more with the computer without worrying if I am going to make it even slower. I do have a spywear protection and check that every week so I don't think I have any spywear problems. If anyone knows any other things to check and what the best upgrade to start with is I would love to know. Thank you for your help.

I want to upgrade my computer but I don't know what to get.?firewall

Hi,

To get the most mileage from your existing computer, there are a few things that you can do to try to speed it up a bit. If, after you've tried these things, you're not satisfied, then upgrading would be a wise choice, and I have a few suggesstions. If your computer meets the requirements on the sofware packages that you install, you shouldn't be too concerned about making it slower, just as long as you're not running lots of applications all at once.

Start out by cleaning up your existing Hardward and Software...