a lot of people use one account for iTunes purchases and one account for iCloud, like @me.com, @icloud.com etc. and when you set up the iPad this will be an option.
i have one more strong suggestion.
there is a bug in 32 bit iTunes 11.4 that will PREVENT you from syncing or backing up your iPad on 10.6.8 , if you are going to stay on snow leopard and you want to purchase an iPad. you must download the 10.6 version of iTunes 11.4 at:
http://support.apple.com/kb/dl1774?viewlocale=en_US
i don't know if this affects your machine. but keep that link in case you have issues with syncing or backing up iPads and iPhones on your machine
what happens is you connect your iPhone or iPad to iTunes on a 32 bit machine with 10.6 and the storage bars turns all yellow and sync is greyed out.
apple forgot to include 32 bit code in this version of iTunes. and the above link will fix it
i believe 11.3.1 is unaffected.
and you need 11.4 for iOS 8
so you must download that specific version of iTunes if you are running snow leopard
if your machine is 64 bit , then you might not need that version of iTunes. but still keep that link in a safe place in case you have any issues