I take a liking to Wilson Combat myself, but Kimber is on par if not better for the price. Expect to pay $800-900 for the bargain-basement models and up to $2-3K for higher-end/comp'd models.
I know a fellow that does gun-smithing and he's of the mind that Kimber is the best off-the-shelf 1911 out there today (for the money).
These are both top-shelf manufacturers so price shouldn't be a kicker. There are other more affordable 1911 frame .45s out there; someone mentioned Springfield Armory (SA) for starters. I've shot a few and have no complaints.
