good place to buy MIDI cables?

yo, i was checking ebay for some and i found a couple 20ft. MIDI cables for sale for like $10-$20. is this pretty standard?

would i be able to get some at radio shack? or would a guitar center something-or-the-other be a better place?

i'm pretty sure alls i need is the standard 5 pin cable type, too?

know of any other stores (internet or brick & mortar) i should go to for cables and other gear?

Radio Shack is fine. 5 pin Din cables, they even have shorties in different colors.

dont double post

thanks el.

will do, mr. allah.