They had a really great ticket promo last year, and I thought they didn't have anything at all for this year until I got onto my base's ITT website to look up the prices I posted below. It says you can buy a 5 Day Hopper for the price of a 3 Day Hopper, and it comes with a Magic Morning. Valid 1 May - 31 October. I doubt that's only available thru my base, so i'd suggest checking with your ITT.
If you can't get that tho, or those dates don't work (they don't for us, we're going in december

), here's what my ITT has posted as their normal (adult) prices, valid thru January '11:
1 day hopper- gate= $97, ITT= $91.50
2 day hopper- gate= $151 , ITT= $131
3 day hopper- gate= $204, ITT= $158.50
4 day hopper- gate= $229, ITT= $166.50
5 day hopper- gate= $249, ITT= $172.50
It also lists a voucher for the Castle Inn, at $90 a night...but that one may just be my base. Definitely worth at least looking into tho. Hope this helped, at least a little.