I, uhh, fifth.
Following season 4 of The Wire is like playing rock music for a crowd that just finished watching Led Zeppelin. Good luck.
I think another reason season 5 is having trouble gaining traction is that many fans came to the party late, and ended up catching the first three or four seasons on DVD (or bit torrent downloads, haha). Watching a season of this show over the course of a week or two on DVD gives a much better perspective of the flow and development of the storyline than does watching one episode per week over ten weeks.
For those of you who have not enjoyed season 5 as much as the previous years, I would suggest either Tivo-ing each week, or downloading the episodes once the season has finished (downloading can't be that bad if you are an actual subscriber, right?). Then, watch them all like you would a DVD, over the course of a few days, or a couple weeks at the most. My guess is that season 5 will seem much more cohesive and enjoyable.