Motorola RAZR V3c

My fiance and I are getting new phones through Verizon Wireless within the next 2 weeks and at first I was interested in getting the V, but its too expensive for me right now, so I've decided on the Razr V3c. I was wondering how the instant messaging (Yahoo and AIM inparticular) work with the Razr and if you like using it through your phone.

Thanks ahead of time!
Dani