Not only do dryers not require gfci, they are designed to not be protected with gfci. Like refrigerators, freezers, and other major appliances with relatively large electric motors, they can easily trip gfci breakers without having a fault condition. If you want to make sure the outlet can be used for a dryer after you are done with it you may want to check out this 3 prong outlet, which is what most dryers use:
http://www.lowes.com/pd_71245-334-1...URL=/pl__0__s?Ntt=cooper+outlet+30&facetInfo=
However, the value is having the circuit run and wired into your panel. Outlets can be changed very easily. So, if you want or require a four prong outlet, I don't think you are hurting yourself when you sell your place.
I did exactly what you are asking about - I installed a 50a spa panel for my gfci. I have a 30a breaker in the electical box. I installed mine in my garage. I wanted my outlet at close to floor level and my spa panel closer to eye level for easy access. I ran 10-3 to the floor level to a double gang box. I went up through the box to the panel, then down from the panel to the box and wired to the outlet. I didn't have any intention of making it usable for anything else, but because of how I did it makes it very easy to take the panel out of the circuit and just wire the outlet directly if I want to.
I would be happy to post pictures later if you are interested.
If you are unsure of anything, either hire or consult an experienced electrician. Electricity and home wiring is fairly simple, but safety cannot be overstated. I have found the people at the big box hardware stores to be very helpful - they are often trained electricians.
Good luck!