directv, pc, streaming, more....?

ok, not sure if this is the correct place to pose this questoin but..

well, i got directv this weekend and want to run it in my room and i dont' have a tv..
so i wanted to do this (just need some ideas on doing it!)

1. install tv tuner card in pc, run s-video and audio from directv receiver to tv card.

2. somehow be able to control directv receiver with computer (not using a vcr eye type thing, rather a cable, saw a few projects where it lets you take contorl of your receiver through the data port and a hack..), but this isn't that important yet..

3. then be able to 'view on demand' any channel over my network via streaming or dvr like..

any suggestoins on programs?
i think beyond tv might be a good streaming solution but are there any others i can use? i also want to be able to stream over wireless...

any ideas or suggestions would be great! thanks