Running just a front brake on a SS is a option, but not a very safe one.If the cable should snap you'll be SOL.Having said this,I've run SS with just a front, but i've also run bikes with suicide hubs and at one point had all my fixed gears brakeless.I have also dropped chains on my brakeless bikes while aproaching intersections and been able to flintstone/ted shred/merge into crosstraffic without stressing out.If you think you can handle some unforseen crap, go ahead with the front only.If you're not sure,don't worry about cool and do both brakes.Btw,those DP18s to formulas have served me well,just make sure to have the wheels tensioned and trued before you use them.It'll save you worries down the line.
do you run a single brake? are you on a fixie or SS?
oh, and I don't like white tires, thanks though.
I run fixed. If you are running SS, you should run two brakes, and therefore look for a set with machined sidewalls on both the front and the rear.
As for the two sets you posted from BikeIsland, I can tell you that the second one is a road wheelset. Instead of choosing an unknown wheelset from BI, look at these Amelias. Sometimes they go on sale for $100 shipped.