Need to wire up my house

Hey folks

Im going to be buying a house here soon, and i need to run a bunch of cable in the walls, and im looking for reccommentations.

Here is the skinny. Im going to have 3 complete systems.

Right now, i have what i need for the "Living room surround"
This is going to be a typical living room setup, nothing fancy. KEF Q1's x5, a Denon 3803, and either my Deftech or a good Velodyne Sub.

I want to build a 2 channel system, which i dont have the parts for yet. Seeing as how i dont have enough room in the livingroom for a 7.1 setup, i will be using the surround back's from the DENON as a 2nd source to the loft, where i want to start building a 2 channel system. First off, i need good in-wall speaker cable. Once i get the amplifier, i will be swapping to RCA connects and using my Denon (downstairs) as a pre-amp. Once i get the money, i will get the pre-amp and will be able to wean the 2ch from the 5ch.

Also, down in the basement, (this will be a couple years later, once i get the basement finished) I will be working on building a theater. (Sconce lighting, projector screen, drapes, the whole nine yards).

The 2channel system and the livingroom HT will already have 1 set of speaker cables and 1 set of RCAs that can connect them.

I will probably run some RCA's down from the Denon to the baasement theater, as well.

So here i will be with a formal HT, a formal 2ch, and a casual livingroom HT.

If i want to somehow connect these to some type of a master control, im wondering if i shouldrun any other types of cable like some CATv or what not.

I know alot of you 'goners' are loaded, and im sure some of you have tried doing this before, and i was wondering if anybody had some tips on setup i can do in the beginning for wiring purposes before the house is built. I would just assume have ALL the wiring done before the house is finished, then i just plug and go untill everything is complete.

Any reccommendations on wiring? type of wiring? manufacturers?

Thanks!