I thought about getting 17s" too. The only ones I really looked at were the Year One rallye in staggered size. These rims and a set of Vredesteins and you be in for less that $2k easy. Your car will look sort of stock, just more modern. They seem like the easiest way to go. All of the fitment dimensions are taken care of. Just bolt on and go; especially with stock suspension. They do seem kind of heavy though.
Now if you want something different looking, then the options are huge. You just need a 5 x 114.3 bolt patten and make sure the backspacing is between 4.5 and 5 inches in the front, and 5 and 5.5 inches in the back. Check the wheel fitment thread at the top of the Suspension forum to confirm these measurements. Tire options are still available, but with less options than larger rims.
I find that buying the correct wheels with correct fitment is a stressful part of any car build. It is a major component of handling and looks. Get it wrong in either area, and it becomes even more expensive than the first time. I am buying through Discount Tires becasue I can set the rims on the hubs to test fitment. If they dont fit, then I can return them with no shipping charges (so I was told by DT). When I determine what rim size fits, I will have the tires mounted. Dealing local should be easier than through an internet dealership if there are any problems. I guess I find out next week how true that is.