Mbox Vs. Digi 002 Rack Options

[JPSpecial]

I'm wondering which audio interface would be better for my needs. I'd like to record voice and acoustic guitar using two different mics and afterward doing some harmony vocals and perhaps a second guitar track and some bass. The real problem I want to avoid is major latency. Will I have substantially less with the firewire digi 002r than with the mbox. Some users have said that the latency with mbox is not a problem while others have said it is a true annoyance. Just wondering what some of you users of either audio interface have to say. Also, how many audio inputs can the digi 002r take at a time? I know the mbox can only take two, which of course is pretty limited.