I've got a D50 with the kit lens (Nikkor DX 18-55 f/3.5-5.6), a tele zoom (Nikkor DX 55-200 f/4-5.6), and an older Nikkor AF 35-70 f/3.3-4.5. I've been thinking of getting a good, fast lens for portraits and shooting in dark situations without flash; I was eyeing the Nikkor 50mm f/1.8, but a new one is insanely expensive around here... now I have an offer for an used f/1.4 for about $150 (new, it's 3 times that here). What do you think? Is it worth it? Any pros/cons? I've done my research on the web, but I found some good reviews, and some bad ones too... I'd like to get some opinions, because I'll be broke if I get it... I want it to be worth it . Thanks in advance.