Agreed. Plenty of taller roadies use 180mm cranks (don't think Indurain ever went down from pedal strike), and Lennard Zinn offers cranks as long as 220mm. I think the only way it would be an issue on a fixed gear is if you're planning on riding at a velodrome.
I might differ with that opinion--I've had pedal strike on 170s when making quick maneuvers.
However, you just have to be careful. If you don't try anything too crazy at first, it probably won't be a problem, and you'll get a feel for how far you can lean without pedal strike. With me, it was never something that would cause me to wipe out. I just made some sparks and soiled my britches.
I run 175's on a low-ish BB'd touring frame. no problems so far. (aww crap I just jinxed myself)
just don't run huge mega-platform pedals and you should be fine. Take corners slow to begin with and slowly learn how far you can lean it over.
The only time I have ever had pedal strike is when I rode too close to the curb, and my right crankarm was actually over the curb, and when I was on the downstroke, The pedal hit the curb, ****ing up the bottom of the pedal, and putting me into a sort of pedal grind!
I rode it out. No biggie.