I still don't know, is Win 7 64 bit better or worth it over 32 bit?
Yes. Most new computers come with at least 8GB of system RAM, and a 32-bit operating system wouldn't even be able to use half of that. There's no point in using 32-bit unless you have an old system where the motherboard won't take more than 4GB anyway. The only advantage of 32-bit is that 64-bit operating systems won't use 16-bit code. But games that are so old they use 16-bit code are best played in an emulator anyway.
Is Win 7 Ultimate any different than Pro?
Not for your purposes. As you can see herehttp://windows.microsoft.com/en-us/windows7/products/compare#T1=tab01
you don't get Bitlocker and you can't switch between 35 different languages with Pro.
Since Win 7 has been out for a while when does support expire for it?
2020 -- of course that may change in the future and it may be supported later than that.
Will support last longer for Pro like XP does Ultimate?
Pro is the Professional version, which will be supported longer than the Home version. Ultimate is the same as Enterprise (the difference is that Enterprise uses a volume license) and will be supported the same as Pro.
Oh my...there are just soo many choices to pick from at ecollege and cyberpower and compared to what I use to spend on computers in the past very reasonable.