Your best bets will be Newegg, CDW and Dell's store. As for 17" Screens, you should gun for a Sony Trinitron (if you can find one) or the Samsung 765MB...that is a very nice screen.
For 19" Screens, I definitely recommend the NEC FP912SB monitor. I don't know of ANYONE that hates the monitor too

. Another choice would be the Viewsonic G90fb (the non-black version being just the G90f of course). The Viewsonic G90fb is about $250 and it is also highly thought of. I enjoyed looking at it when I saw the monitor and it will be my next monitor if I can't find a decent FP912SB when it comes time to buy one. Depending on the pay of a new job, I may go for an LCD instead. The FP912SB is under $300, so don't worry about that. Another excellent choice would be the MultiSync FE991SB-BK monitor. Also around $250, it is a choice (I don't know, it might still be) on Alienware's game-rig configurator for a CRT monitor. While people have said small text can get fuzzy, others have said it is just the brightness that causes that. That aside, I know people thought it looked AMAZING in games. If you want to avoid uncertainty, go for the Samsung 957MB too...but it might be over $300.
These are monitors that I have seen for myself and would recommend (in no particular order) from one gamer (me) to another:
17":
[*]Samsung 765MB
[*]Sony Trinitron CPD-E240/B (I think thats the right model of the screen I saw)
19":
[*]Samsung 957MB
[*]NEC MultiSync FP912SB
[*]Viewsonic G90fb
If quality is your first priority, then definitely go for the FP912SB if you find it decently priced. Last I saw on Dell's store, it was $280 plus shipping, and that wasn't during a sale. The FP912SB has the BEST quality, followed by the 957MB and then the G90fb. The 17" ones I saw had about the same quality (both were fantastic).
I hope I was of some help to you!