Wireless keyboard as an"ultimate remote" with USB-

Good people from AVS forum gave me the link and after reading for 30 sec I ordered one.
Now as a newbie I want to ask some questions, maybe basic:
I intend to use USB-UIRT so my keyboard is my "ultimate remote".
Namely, controls TV On/Off/Video1-5;
Controls Directv Receiver;
Controls A/V Receiver;
Controls my Pioneer F727 so it can change DVD's (so far I was unable to teach any remote "change DVD" command and that's why original remote is still around, but I want it to retire soon.
So how trivial/complicated are my goals?
Thanks a lot.
Now as a newbie I want to ask some questions, maybe basic:
I intend to use USB-UIRT so my keyboard is my "ultimate remote".
Namely, controls TV On/Off/Video1-5;
Controls Directv Receiver;
Controls A/V Receiver;
Controls my Pioneer F727 so it can change DVD's (so far I was unable to teach any remote "change DVD" command and that's why original remote is still around, but I want it to retire soon.
So how trivial/complicated are my goals?
Thanks a lot.