About the only thing Ultimate has over Professional is BitLocker, which encrypts your entire hard drive so if it falls into someone else's hands it'll be nearly impossible for them to get at your data.
Oh. And I think Ultimate already has all language packs built into it right out of the box. Big whoop-dee-doo there.
Since you have Professional, what you can do to make your life easier is to download the Windows XP virtual machine software that operates seamlessly with the Windows 7 OS. In other words, it lets you drag and drop stuff in real time between the Windows 7 OS and the XP VM without having to use a folder as a go-between.
But that's about it, I think. Windows 7, as it is, is already backwards compatible with most software out there. The only things you'll benefit from that is if you got something that is vital to your work but is adversely affected by 64-bit systems. (A good example of this is SimCity 4 - it'll run on my 64-bit laptop with Windows 7... but crashes at random moments. Since I don't have Professional, I have to set the affinity using Task Manager so it only uses one CPU core instead of all three to keep it from crashing.)
Oh. And I think Ultimate already has all language packs built into it right out of the box. Big whoop-dee-doo there.
Since you have Professional, what you can do to make your life easier is to download the Windows XP virtual machine software that operates seamlessly with the Windows 7 OS. In other words, it lets you drag and drop stuff in real time between the Windows 7 OS and the XP VM without having to use a folder as a go-between.
But that's about it, I think. Windows 7, as it is, is already backwards compatible with most software out there. The only things you'll benefit from that is if you got something that is vital to your work but is adversely affected by 64-bit systems. (A good example of this is SimCity 4 - it'll run on my 64-bit laptop with Windows 7... but crashes at random moments. Since I don't have Professional, I have to set the affinity using Task Manager so it only uses one CPU core instead of all three to keep it from crashing.)