Lenny,
It's so far ahead you won't be able to get quotes asyet. But we did go last year end Nov for 3 weeks. We paid £260 flights with Continental using Virgin flights. Now I'm not sure what they are this year as we wouldn't go again from Gatwick but I've been looking for friends and we've been quoted £299 with US Airways/Delta/United etc from Manchester but the only downside is that it's indirect.
Actually I've just looked on expedia.com and they are offering wdw vacations including 10 day World hopper passes. For instance Port Orleans for 2 weeks including passes works out at £685.00 each plus flights@ £299 = £984.00
Virgin's price for the same holiday is £1409 each but you do get 1 weeks car hire free, you just have to pay insurances for the 2nd week which will prob be approx £140.
To book the same holiday using discount codes still using POR for example it would be.... £299 each flights, £888 for 14nights for POR, 7 day hopper pass £216.00 ea = £959
As you can see it's slightly less DIY, but Virgin may have special discounts as an incentive to book early.
As for other hotels, I'm afraid I'm hopeless as we usually stay in private villas. There are a few hotel websites that I use i.e.
www.hotelkingdom.com
www.hoteldiscount.com
www.expedia.com
Hope that's given you a little idea but I'm sure you'll get lots of other feedback anyway.
Lisa