Andy lists 4, Big Leaf has 5, I'm surprised how few they list. If you enter Phaelanopsis species on eBay, 51 listings come up. Many are duplicates but it's probably worth checking out. If nothing else, by hitting 'vendor's other listings', you'll ID businesses that have what you are looking for.

http://www.ebay.com/sch/i.html?_from=R40&_sacat=0amp;_nkw=phalaenopsis+orchid+species&_nkwusc=Phaelanopsis+orchid+species&_rdc=1

Nick

Seattle Orchids has a few Phals and is also on EBay under incredible orchids. Also Oakhill has several Phals of different sizes.

http://www.seattleorchid.com/Phalaenopsis-s/1845.htm

http://oakhillgardens.com/htm/orchid_fs_db.php?sec=sppr&toptext=Species%20P-R&page=2

Norman's Orchids (orchids.com) has over a dozen species available on their site.

http://www.orchids.com/Species-C5.aspx?s=Name%20ASC&c=5&p=11

Copy and paste the URL above. This shows the first page of the phal species.