I can't speak for the one from Pelican Accessories, but the Hori Digital Controller is the most-awesome one. In fact, I bought a second one just because I loved it so much.
A quick Google search reveals that most places are sold out of this godly product, however this seller came up and claims to have it in stock (Japanese Indigo only though) for $15.99. I've never ordered from (or heard of) this company, so I can't really vouch for 'em.
http://www.the-console-corner.com/hori_digital_controller.htmFor those wondering what the heck we're talking about here and why *you* should get one as well, here's a good link:
http://www.the-nextlevel.com/features/hardware/hori-digital-controller/*edit* - Oh yeah, if you have a GameCrazy near by, check them out. GameCrazy was the only major national chain to carry the product here in the US (if I'm correct). I know they were on sale some time ago, so your chances might be slim. I was going to point you to this post:
Quote
It seems that people are still having problems tracking down this product at GameCrazy. I apologize for that. If you are interested in the product please ask for the "Controller Game Boy Digital" at GameCrazy and they should be able to order it for you if the store you go to doesn't have it.
But then I noticed that post was in your own thread!
http://www.planetgamecube.com/forums/messageview.cfm?catid=3&threadid=11049&FTVAR_MSGDBTABLE=Sorry to see you're still having problems getting this. Are you located near a Game Crazy at all?