You cannot listen to Sirius NFL radio over the internet because some of the content is streamed directly from NFL network. Its a licensing issue. Ive contact sirius about it several times.
I haven't heard Rice too much so I have no comment.
Sharpe is not a huge loss imo. I found him difficult to understand and it just didn't seem like he got into the show like other hosts.
I don't mind adam schein, but maybe it was because his show was with john riggins. Personally, "I gotta tell ya", I liked the way schein spoke. I felt that he enjoyed doing the show and you could almost see him in your mind getting animated.
Without a doubt, the best show is "Moving The Chains" with Tim Ryan & Pat Kirwin like Raidernation said (hate to agree with "da raiders". Raidernation Im sure knows how thats supposed to sound when T-Rock says it.

T-Rock and PK bring a very interesting combination to the table in their program. PK was a front office man and knows the business side of things and what teams are thinking. He has alot of first hand knowledge of what goes through the GMs mind when making cuts or drafting players. T-Rock comes from the players side of things and can speak first hand about contract hold-outs, injuries, and situations you face as a player. I really hope sirius doesn't do anything stupid like not renew these guys contracts.
I guess its just me, but Bob Popa really annoys me. When I listen to him I can almost see him making that "why I am sitting here doing this show" face. The only thing he brings to the table imo is his inside knowledge of the NYG.
Lastly, the Fantasy Football show with Adam Kaplan and John Hansen is pretty good. I enjoy it but haven't grown the set to call yet. I will say one thing, I wish they would stop taking the "I have x, y, and z. Who do I start?" calls and take calls from guys that ask questions like "Break down Aaaron Brooks as a Raider for me" or "Is x going to start this sunday?". Also, they do a replay of the show on Sunday, I don't know the exact times but I know its repeated on Sunday.