I think the main thing is to find reliable texts to start with. Beyond the obvious, of course, you need to make sure your students read both Vergil and Caesar’s selected texts. There are tons of resources online so students can get access to these texts for free. (I’ll come back to that sometime)
Let’s assume you have money to start a program though. I would like everyone’s opinion on which texts to use. I think I am going with Han Friedrich Mueller’s Caesar Selections (he also happens to be a former professor of mine!) and Barbara Weiden Boyd’s Vergil Selections. On what I have been able to gather, they seem like pretty good texts to use with my students. See a description here:
http://www.bolchazy.com/2012apsitehtml/index.html
Thoughts?