Those are all nice pics.. SLRs take some time to learn because they have the ability to change soo many more settings to change.. I really need to get one!
For on location I use up to 6 nikon SB-800's with various diffusers, grids, gels ect. For my glamor and boudoir work I use four interfit Stellar XD 600's and normally a SB-800 as a hair light or for gels.