Miranda,
Personally I like the idea of 2 machines instead of an "all-in-one" because both can be working at the same time if necessary. I think it's more production-oriented, but hey, what do I know.
Also, depending on your budget, you could look into the ValueJet w/Graphtec Cutter for not much more than a VersaCamm, unless the VC has come down in price, I'm not sure about that either. I think the quality on the VJ is much better than the Roland, the software is much more robust (depending on what dealer you work with), and overall, it's a cheaper printer to operate.
I think whatever you decide on, make sure you have a dealer that understands color management and the importance of profiles. If they can't create custom profiles, make sure they can provide you with something other than manufacturer profiles. This industry has evolved so much that accurate color management is the key to reducing waste, reprints, your time, and most importantly, HEADACHES!
Matt