@Jiggly: Why don't you download the iWork trial and find out?
I think iWork is GREAT if you don't need to interoperate with other MS Office users, which is one of its weakness. It can import\export MS Office files but not at 100% compatibility, especially on the more 'complex' files. This is also true with OpenOffice.
But to get back on point, I didn't even realize that there was a free iWork trial. Just never looked hard enough I suppose. I think I'll check it out and assess the capabilities.