crazyoutlaw, If I were you, I would keep it simple. These are two options that may lead you in the right direction
Option A - Get a 250 MH/HPS system and don't have to worry about any other lighting needs. The MH is better for vegging 10 - 12 plants plants very quickly. You can then switch the bulb into the other socket and start flowering. This HPS is 33,000 lumens and you will have one heck of a yield
Pros - Simplicty at its best and adequate light for more plants
Cons - Heat
High Tech Garden Supply
Option B - Buy the 150 W HPS and buy another Florescent lighting system that will allow for T5, T8 or basic compacts. This option will probably cost you the same as Option A.
Pros - Lower electrical usage, Practically no heat on Floros and slightly lower heat with HPS 150 W.
Cons - Messing with multiple lighting systems, possibility of slightly smaller yields ( but it's more like winning a million dollars, but actually getting a check for 934,566 dollars.. Nothing to worry about )
Hope this helps...