You only need the p version if you want to run at 1024x768, which is pretty and the dot pitch is finer than the other models.
Yea the shipping costs suck for residential but for buisness its only 25 bucks more than a wells gardner.
I had mine home dilivered so i could get it on a saturday, i wouldn't do it agian when i get my second one, i will take time off work to go get it.