What are the REAL differences between D90 & D5000? - First DSLR

I will be buying my first DSLR before the end of the month. A friend, whose pics I admire, owns the D90, but I can get the D5000 with two VR zoom lenses and a bag at Costco for $300 less. I also want it now. Did I mention that? Hahaha.

What are the real differences between the two? When I did a Side-by-Side comparison on this site they were almost identical.

My second question is about getting a wide angle lens. If I get a 35mm, what will the picutes actually turn out like on the D5000? Someone mentioned that maybe it didn't take wide angle shots as well.

Thanks!