What is a good place to buy singles?

[Jungletoad]

I need to buy some singles to complete my FireRed and LeafGreen + Neo Revelations set. Does anyone here know about a good site that ships their singles in sleeves etc? I have heard stories of people receiving scratched cards

 

[PokePhD]

If you are looking for quality you should check out: http://www.professor-oak.com

They have a wide selection of Mint cards and shipping is always free.

EDIT: Forgot to mention that their prices are usually quite high, however.

 

[Daelum]

I recommend http://www.gamingetc.com

They have prices comparable to Troll and Toad, but they actually have NM cards, unlike Troll and Toad.

 

[Ysmir]

I can vouch for gamingETC too. am a member on their forums (YugiohETC) have been since 06. They are solid and cards arrive in NM condition like above poster stated.