Todah,
If you have Office 2003, it will indeed run just fine on Vista, that's what I installed. Which version of Office do you have? What type of conversion program are you required to use?
I too, just bought a new laptop and it came with Vista, at first I wasn't thrilled with the idea, however, Vista is growing on me. Now, would I run out and buy the Vista upgrade for my desktop running XP, no way, not worth the expense. However, Vista has been running just fine on the laptop and I have been able to do everything I need to do. I did have to install one program (EVPN) in the XP compatibilty mode, but it runs fine.