I use the Rudy project ones, not sure what model but I paid about $200. The lenses are ones that are polarised and have all the UV requirements, but you can also wear them in the dark and still be able to see! (Not so important for running, but I often cycle a bit at night time).
http://www.stylerhealth.com/Images/FestivalOfCycling.jpgCan be a little personal as everyone has different tastes in how they look the look / style of the glasses, but don't forget the fit is equally important. With running you want something that is going to stay in place - and also not fog up whenever you stop to do something haha! Cheers J.
____________________
JAMES STYLER (p.f.t), (b.b)
Columnist for V02 MAX magazine
Interview with 2 x Ironman World Champion Chrissie Wellington here:
http://www.chrissiewellington.org/media/ironwoman-extraordinaire/TEL: 027 5534266
WEB: www.stylerhealth.com