I just bought the above pc...thinking I could do it myself..I purchased second internal DVD burner (HP) One problem as I found out from an HP customer service rep (via online chat). This pc model m8530f', the power supply only has: one 24 - pin ATX power connector and one 4-pin ATX power connector; all foreign to me. Basically to install a second internal drive the power supply needs to have 2 power connectors -- makes perfect sense! BUT WHY THE HELL PUT SECONDARY BAY AVAILABE...BUT NOT INSTALL A POWER SUPPLY TO SUPPORT IT!!! WTF!!!! Anyway around this without changing power supply? Obviously I can buy an external burner.....