As you set about choosing the type of computer you will sync your iPad with, take iTunes into consideration. Since any iOS device out there is forever dependent on iTunes, making sure that the application works well is a really smart thing to do.
Assuming you have access to a Mac OS X computer and a Windows 7 computer that you can choose between, I’m going to save you the trouble of experimenting….
… sync with your … Mac.
Experience has taught me, computer after computer, regardless of specs, iTunes performs FAR better on a Mac than on a Windows machine.