Quote j_hunter_hkr="j_hunter_hkr"The Wire is fantastic, the best TV show I've ever seen. I've been looking for something else to get into, what's The Shield like compared to The Wire? I remember Charlie Brooker raving about it on Screenwipe.'"
I'd strongly recommend the shield but its not an easy to compare to The Wire. The Shield is a roller-coaster from the very first episode to the last.
The shield is excellent at what it does and one of the best things about it is it's very skewed moral compass.
For me, The Wire is the greatest show ever for its scope, intelligence and complexity. The Shield on the other hand is one of the most enjoyable shows ever as it's relentless and really keeps you on the edge of your seat (just don't expect it to be The Wire, or you'll be massively disapointed).
The Shield also has some brilliant guest stars - Series 5 & 6 with Forrest Whitaker were the best part of the show IMHO (but as with the Wire don't try and dip in half way through).
(The good news is that the Shield DVD box sets are dirt cheap on t'internet...I think I got them for less than a tenner a piece)