I've been lifting for around a year and a half, first with Rippetoe's starting strength, then a 5x5, and then a 4 day split.

I think I'd like to try an upper/lower split set up like this:

Mon-A
Wed-B
Fri-A

Mon-B
Wed-A
Fri-B

etc. etc.

Has anyone used a split like this with success? Any suggestions? Thanks.