Im still happy with my pentium 4ht win vista 1 gig of ram, should i upgrade any way?

You can if you want. If you're still happy with it, why bother? However, if the case is that your current applications stop working because the company no longer supports it, it may be time for a switch. The same being if it really bothers you that the burner doesn't work (you might wanna get that looked at). I say, if it works for you, don't fix something that's not broken.