C.G.
We used the Ikea Gulliver crib. It was 80 dollars or something, but went through 4 kids. My friend has it now and she has 2. I loved the look of it, and it was one of the best cribs I have ever seen. My friend spent $400 on her crib for her first and took mine for her second and third because the first crib fell apart.
I think that if you like your crib, and you think that the slats are sturdy, you should keep it. Just check it every so often, like every Sunday night, or whatever, make it a "date" that you check the crib while your hubby gives the baby a bath. That way you have peace of mind and are not throwing a couple hundred dollars away.
We do "safety checks" like these once a week in the kid's rooms, and have found uncovered plugs, small toy peices, that sort of thing. It gives me peace to know that they are in a safe area, and it sets up the kids for later when they want "privacy" to know that we know what is going on in their bedrooms.
Good Luck!