Seamus,
Also check out Songsterr:
http://www.songsterr.com/
Generally very high quality tabs, a midi playback interface, but subscription required to print.
And Ultimate-Guitar.com
http://www.ultimate-guitar.com/
Here, you have to use the tab rating system to discover the better tabs, and that is greatly facilitated if you have an iphone and the ultimate-guitar app (which is really fantastic).
Chordie is good too but I've found their tab collection to be limited in both scope and quality.
JD