As people have mentioned, if you have a Sansamp and VT, your tone is there in those pedals anyway - your choice of head isn't so critical if you want to use the pedals. If you want the sound without the pedals, you might have to choose a bit more carefully.
I was after the sound you're looking for, and used a Sansamp with a LMIII for a while, which sounded good, but I was looking for a pedal-less solution, so I bought a RH450 which was good, and had lots of bells and whistles built-in, but eventually, after going through several other heads (I thought the PF500 was a bit, well, meh, and the OTB is great if you like its sound, but a bit bigger), I've settled on a Streamliner 900. Valvey, light and loud, and worth considering.
Oh, and the Super 12 is a great cab.