Sean, just to mention that I'm helping a local musician set up his tiny studio, and I've listed the Tascams as one option. I'm just a musician, not a serious studio cat, but I like to listen and read a lot. I've never used the Tascams myself but keep reading rather positive reviews (value for price) of them.
But I've seen even better overall reviews of this little 5" model, which also also won Future Music's pro monitor shootout, held in Peter Gabriel's studio, last year. This Samson Rubicon r5a has a ribbon tweeter, and it took top honors in the lower price ranges of that shootout:
http://www.musiciansbuy.com/Samson_Rubicon_R5A_w_Free_R5AKIT.html
If I were shopping now, I'd have it on my short list to audition, and so I'm also suggesting it to my buddy. He may pick up both models and AB them.
Good luck,
J.