I agree.
At the time I put the CD in my stereo, and then recorded that music to tape, which I listened to many, many times on my walkman. Of course, I was too embarrassed to tell anyone I was listening to video game music.
I busted out the old MW2 a few months ago. Good stuff.
Track 9 in media player (or 10 if you're listening on CD), is good. It's from the urban level, where you have to destroy a bunch of mechs.
Track 14 (15 on a CD player) is also good.
Track 16 (17 on CD player) is probably my favorite though. It's the track that played on all the boss levels.
Also check out 22, 8, 10, 5 (add +1 if you are listening on a CD player, which makes the data track the first track).