We are going in May, just booking it now really.
We book part of it DIY and part in a travel agent. We book the disney part via thomsons, then we can pay a deposit and pay it up, so we get it while the offer is still on, but out of 3 wages, as we didnt have time to save up. The price was the same via thomsons as it was with disney direct.
We are driving to get there, we stay in the far north of Scotland, and still find driving is cheaper than the alternative (well it was last year as we got an offer on the ferry, £75 return, and stayed overnight with family). This year we are having a couple of overnights either side, and taking the tunnel, and DH is keen to try it!
I also love that by taking the car we can take as much luggage as we want, and not worry about buying things and getting them home.
We stayed in the Cheyenne last year, and are going back as it was the only hotel that had the offer on for the dates we wanted, but we are planning on going back in October and want the SL or NY.