Su-WEET! I have a 4610 and am considering upgrading to a 4720. Don't need the cab, though, here in Hawaii. If you don't have one already, you should consider getting a ballast box to counterbalance the front loader. That puppy looks like it'll pick up 1500 pounds or so of gravel/whatever, and for safety you'll want weight on the rear. Keep us apprised as you break it in.
Cheers, Mark