How much Ram do you have now? You can decrease the startup time by
eliminating a few programs that
startup at boot. Also you can make some adjustments in the Bios. Check
here for some more info.
http://www.rojakpot.com/ Look for Bios Guide
And, go to Start>Run type: msconfig select Startup and see what
programs are there that you can do
without. Uncheck any you don't want. Experiment you can always go back
and recheck them.