I can see I have further homework ahead of me. I'm not familiar with any of those software packages (other than Media Center) or devices but then I'm just getting going. Hard wire is doable considering I intend to keep the server in the basement and the 2 main TV's I would feed would be right above it.
More info - OTA would be the only non-internet feed. No cable or satellite either. ie. I would record OTA for HD quality local channels, and anything else I'd watch would be from some internet supplier of TV shows (probably multiple suppliers - I have Netflix but I'm sure that won't be enough). Movies would be from ripped DVD's or attached Blu ray players (I currently have 1 PS3).
Thank you for the help; I appreciate it.
Your biggest decision is what kind of networking setup you can put together -
1 - Fully wired
2 - Partially wired
3 - Fully wireless
I'm thinking #2 will be your best bet from a price/performance standpoint.
Your PS3 is already an excellent media streaming device with two obstacles. The built-in wireless is 'G' and it does not playback .mkv files. Wireless 'G' cannot handle HD streams, so you'll need to wire the PS3 into the network. The .mkv issue is easy to overcome. Mezzmo will transcode .mkv files on the fly to a PS3 supported video format as long as the CPU in your media server is strong enough to transcode in real time.
The Western Digital Live Plus will do Netflix and allow you to stream everything from your media server. They don't have built-in wireless, so you'll need to pick up wireless adapters for each one that can't be hardwired.
50 feet Cat5e @ Monoprice - $5.38
ATSC Tuner Card @ Monoprice - $36.05
Linksys e3000 router with dual-band wireless N @Linksys store - $99.99 refurb
Western Digital Live Plus @ Amazon.com - $89.99 x 2 = $179.98
Airlink USB Wireless N adapter @ Amazon.com x 2 - $13.57 = $27.14
Mezzmo streaming software - $29.95
Total Price - 378.49
If you decide that you can fully wire everything, then dump the Airlin adapters and add a couple of cables
Total Price - 362.11
Or if you think the best idea is to go fully wireless, dump the Cat5e and pick up a wireless bridge to wire up to the PS3. I recommend the Linksys WR610N. It's at the Linksys store, also refurb, for $54.99.
Total Price - 428.10
If money becomes a real issue, you could opt for the free versions of PS3 Media Server or Tversity instead of Mezzmo. They'll transcode for the PS3, also, but with the multiple boxes and possible multiple network setups, the flexibility of Mezzmo is easily worth the $30.
There are a couple of other options you could consider. D-Link has a MoCA setup that they claim has a true 200mbps throughput (rated at 270mbps). It just runs the ethernet through the existing coax in your house, so if you have cable jacks at all of the points it could be an option. It's a bit pricey, but you could save some cash on a less expensive router and the connection would be about double what a wireless 'N' connection would do, but far less than half of a gigabit connection. You'll need to be reasonably confident in the integrity of your home's coax setup. If it's one of those that is thrown together with a gnarly nest of splitters and RG-59, then it might not be the way to go.
Let us know how it goes.