Finished my HT - now I need a universal remote!

[victimsofadown]

I know NOTHING about them (other than the fact that Harmony seems to be the most popular), but I feel like I am in a situation where I REALLY need one.

Here's what I need it to control...
-Panasonic 50" G10 Television
-Comcast HD DVR Cable Box (made by Motorolla, can find specifics if necessary)
-Pioneer VSX-819h-k receiver
-Sony Playstation 3 (I have the really nice Sony BR remote right now)
-Microsoft Xbox 360 (not important, but would be nice)

Here's what I need it to do...
-Have FULL functionality for each component. THIS IS REALLY IMPORTANT FOR ME, I could go out and buy a $10 univ remote for power & volume, but I need one remote to be able to change my display settings/inputs on my TV, access my comcast cable DVR, set recordings, etc, change the inputs/change the speaker settings/change the volume of my receiver, you get the idea
-Be able to turn multiple things on/off with 1 button (not needed, but would be nice to turn everything off at once)
-Be as cheap as possible. I don't need a ton of frills, as long as it can control the devices I need it to control.


Like I said I'm clueless on this one. I spent SOOOO much energy researching my TV & Receiver that I'm ready to just take some suggestions about the remote!
Thanks in advance!

EDIT: Found the Logitech Harmony 510 for around $40. Is this remote worthwhile? ALL INPUT APPRECIATED!!!