Canon Eos 7d Nikon D300s
Video on the Nikon D300s?

I'm thinking of getting a Nikon D300s or Canon EOS 7D. I've heard that video can be recorded only for 5 minutes like the D90. Is this true. All comments on any of the camera?

Yes, you limited to 5 minutes. 7D has a lot more, and can record in Full HD. The 7D is actually a better camera, especially because the prices are very similar and you get more of the 7D. Even with a 18MP APS-C sensor, the image quality is good, better than the 50D.