when i was first started riding fixed i rode with a brake. i ride brakeless now. i like it. it makes you pay even more attention. i think it just depends where and how you ride.
do NOT buy that crap applecart2 sells. it is pure junk. he just removes the cassette, redishes the wheel, screws on a cheapo track cog and a right hand thread lockring from a bottom bracket, if a lockring at all. that means the reverse pressure to slow is going to make the cog come unscrewed, bb lockring or not. which means you are screwed. you need a left hand thread lockring to be safe.
you ride a 51? i bought a very sexy italvega frame off of ebay that is a 52 that i'm converting to a fixie just to resell. it's a pretty interesting frame. no rear derailuer hanger at all and 120mm spacing. the only braze-ons are brake bosses. it was just asking to be a fixie. xcutterx and i laced up the wheels tonite. he's going to tension and true them tomorrow. i have spent 250 or so total on it. i don't want a profit what so ever. i could get a picture for you probably by tomorrow if you're interested. or anyone else for that matter. if no one is interested i'll probably just put it up on ebay...