Came across these mirrors
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=280494218697#ht_5883wt_911
They look like they'd fit the existing mirror holes on the GS500F. Look like a decent buy or not?
they look alot like the shock racing led mirrors that i have on my 04. You would need to reuse the bolts from your existing mirrors though most likely as the f mirrors bolt into the front headlight/fairing frame and don't use a nut on the end of the bolt to attach so unless they are the right size for the holes on the frame you would have to use your existing ones which is no big deal.
Also with the shock racing mirrors which have the same sort of boot where they attach to the fairing i wasn't pleased with the fit as i felt it looked a little sloppy. I took the mounts from the factory mirrors and was able to take apart the new mirrors and bolt them together at the hinge point and used the factory mounting plate as it had a better fit.
I am not sure as to how bright the blinkers are but i ran additional flush mount led blinkers up front in the factory holes as i felt that it was better to have more blinking light to make sure i was seen cause i didn't feel the mirrors on their own produced a bright enough light for a blinker.