Coming home to Tulsa

[Johnboy976]

Hey guys,
I've been keeping up on Tulsa for years. Of course, I haven't lived there for years, either (and it's been 8 months since I've been there last). I am bringing my fiance back to Tulsa for 4 days starting tomorrow, another 4 in Lawton. I know pretty much what is around, but what are some of the best places to go without spending a lot of money (the zoo is a must... she has been to Tulsa before)?