I have a Dell PC at work that should be upgraded to Win 7 before XP goes obsolete. It has an Intel Core 2 Duo E7200 2.53GHz processor and 3GB RAM. It's used for a proprietary scheduling system, QuickBooks, Office, Outlook and browsing when no one's looking. It seems to be Win 7 ready but I wonder if it'll cost me more to buy a Win 7 license than a PC with Win 7 installed. This is a DIY effort so there's value to just upgrading the OS, if that's possible vs starting with a fresh PC.

Also, should I go with Win 7 Pro since I'm using XP Pro now, or some other version of Win 7?

Mac and other OS's aren't options at this time

Thanks,
Sixto
87 300D