The Golden Nugget $20 and $10 as well. I think Andy has the $20 GN for sale on his site.

I did a quick inventory of my $20 chips, and came up with the following:

(current)
Golden Nugget
MGM
Venetian
Wynn
(A.C.)
Borgata
Harrah's Marina
Sands

(obsolete)
4 Queens
CBS Sportsworld
Nevada Club
Overland Hotel
Palace Club (Both Reno and Fallon)
Stardust

(California)
Comanche Club
Floyds
Vineyard

(Other)
Newtons, Torquay
Hilton Intl. Puerto Rico
Condado Beach, Puerto Rico
Spearmint Rhino (Good for Couch Dances only )

(oversize and Baccarat)
Caesars Tahoe
DI 16th issue (have all denoms)
Dunes 16th issue (have all denoms)
Golden Nugget
Hilton (current + 8th, 7th, and 5th)
London Club
MGM Grand
Sands 17th issue

In oversize $25, I also have
Hard Rock Peacock
Mandalay Bay
MGM Grand
Palms

Of current issue, I still need the Paris $20 and Caesars Vegas $20 Baccarat chips.

I hope this helps. I'll try to post a picture soon to show off .

Brent J. Jensen
bjjensen
orbis non sufficit