hey
so i ve just recently started to modify my gs500 and decided a belly pan would look good, has anyone already got one on? do they look good? and where can i get one?

They look good. Different ones available. Gimbel makes one that is the closest to the origial OEM. Mine are the original OEM ones. Mostly available from distributors in the UK. Someone may have a used one.

how much are they roughly worth as well?

Here is a link to the one I will be getting in like a month or so.
if no more problems arise, life or bike problems....

http://www.mandp.co.uk/productinfo.aspx?catref=516552&tier1url=Bodywork&tier2url=Bellypans&tier3url=Skidmarx
Price: £61.39

another site I can thank adidas again for having posted awhile ago that I found searching thru the site 

thanks tomb, big help

Gimbel makes nice fiberglass ones. Their pan is almost identical to the original OEM. Best aftermarket one I've seen and is for the GS500. Comes primed. You paint it.
http://stores.ebay.com/bikeparts79/_i.html?_nkw=gs500&submit=Search&_sid=106826498

And where can one purchase a belly pan in Australia because the freight is a killer on top of the price.