It's possible that you would be better off finding an interested colleague and working out an arrangement with him/her -- from having been in a somewhat similar situation, I would say that it would be incredibly difficult to start a lab, run a lab, and go to vet school at the same time. Maybe you're vastly more intelligent or vastly more efficient than I am
but I think you might still end up having to shortchange both endeavors.
Given your strong research background, I would imagine that any faculty member interested in infectious disease research would LOVE to have you in their lab, and would be able to do a lot of the grant seeking so that you could focus more on school and actually doing research. There are small grants you can get from organizations like the Morris Animal Foundation and the Canine Health Foundation, as well as larger grants that your PI could apply for. And since you're coming in with an established area of interest, I would be surprised if you couldn't find someone willing to let you work on whatever you were planning to do anyway -- everyone would benefit, and it would take a lot of the pressure and administrative work off of you.
If you find a mentor/colleague/PI pretty soon, you could apply together for some of the stimulus grants that are currently being awarded, and it would also give you time to pursue other funding options. By the time you were ready to move to their lab you could have funding all set up and be ready to go. And if you find someone whose research is at all aligned with yours, a lot of the resources would already exist and you wouldn't need nearly as much money. I don't know what specifically you work on, or where you're planning to go to school, so I don't know if anyone like that exists there. But it might be worth looking into.