Hey Epsilon,
In life you pay your money and take your choice and I am not going to tell you what is or is not the right thing to do for you............However: I am fairly sure that despite what the ATP website states regarding the WizzAir deal you will not be legaly entitled to a permenent position with Wizz on completion of the line training so it could be a case of €46000 for TR and 300 hours which in the present economic climate does not strike me as a great deal, so you should not consider the ATP assesment to be an assesment with Wizzair, cause its not!
If you have done your homework and are determined to go ahead with it, a bit of sim preperation would be priceless. Flightdeck technology (
http://www.flightdecktechnology.com/) has a 737 sim and are reasonably priced or if you have an unlimited budget (which if you are considering this scheme you probably do) Virtual aviation (
www.virtualaviation.co.uk) has an excellent reputation and prices to match.
Best of luck