Oh didn't notice that, thanks El! Think i'd prefer a silver nose bridge and rim bottoms. All black looks cool but the quality of the workmanship really shows with the gold, or if possible silver, parts like those on Geos pair. Just my opinion mind
El they are 52-20s (52 is the lens width in mm, 20 is the bridge in mm)
No good way to choose a size other than try on (hectics link is pretty good) - but you could go to opticians and try similar to see what frame size is best