Some time ago, my guess is 2 or so years now, I went through 4 different 22" inch LCD models before I realized they were all destined to be the same 160/160 5ms TN panel. I learned that I was never going to find what I wanted in that size. Color reproduction was never a problem for me, though. It was always the viewing angles and the frosty look the matte coatings create. I think matte can also jack up the contrast too. Those last two statements should annoy some folk, since they love their matte screens and hate glossy . I finally settled on a 20" NEC 20wmgx2 which turned out to be well worth the extra dough.
I know some day I'll be needing to buy again. I remain prepared for another pain in the ass trying to find a glossy coated screen of the MVA/PVA, IPS variety that's still affordable. I've tried out what I call the 2nd generation 5ms TN panel which has the 170/160 viewing angles and they actually got better, but still not good enough.
Congrats to the OP for being able to make such a complicated decision so quickly