I've used Lowestfare.com several times for tickets and always been satisfied and always got a good price as well. One time I got screwed by TWA because they took my reservation and credit card number and then never actually booked my ticket so when I called to confirm they were like "sorry, we don't believe you actually booked it now the fare is $200 more, do you want it?" So I went to lowesfare and although it wasn't as cheap as my first ticket it it was much better than what TWA was quoting me and it was ON TWA! Which was too bad but hey I was desperate.