[gleeaikin]

Then there are the oddballs like Finish and Basque.

[Lonesome in Massachussets]

Finnish is related to Hungarian and Estonia, inter alia. ]

http://en.wikipedia.org/wiki/Uralic_languages

Basque may not actually be a complete isolate:

http://en.wikipedia.org/wiki/Basque_language#Relation_with_other_languages