I had custom lasik with IntraLase as TLC just over 1 year ago. Total cost was $5800. Got something like $1000 back since you can deduct it as a medical expense on your income tax. The price also depends on the size of your pupil, the thickness of your cornea and your prescription. If you have a large pupil and thin cornea you will have to pay for the latest technology.
Another thing to keep in mind is you need to have checkups with an eye doctor at something like 1 day, 2 weeks, 1 month, 3 months, 6 months and 1 year. And there's some eye drops and stuff you need. TLC covers the cost of this, I'm not sure about other places.
The consultations are free, so you might as well check some places out and get a quote. They do a bunch of tests, so be prepared to be there about an hour.