Yep, that's the
most exhaustive Basque grammar in existence. And it doesn't even say a damn thing about pitch-accent or stress!
This is the best course for learning Basque:http://www.hiru.com/e-ikasi/idiomas/ikasten
The main page is only in Basque and Spanish, but the course is in English or Spanish. The website has several languages for the interface (French, Catalan, Croatian, Greek, Bulgarian, Romanian, and Basque) but it seems if you choose anything other than Spanish or English, the actual course material is in Spanish, with just the interface in the language you choose.
The site asks for a Spanish ID number of some kind, but just use 12345678A like the example, unless you have an actual ID, and that works fine. Every once in awhile the site says the information I've entered is wrong, but it doesn't say what, so I don't know why it says that. I just change a letter or something and submit and it's fine. So obviously they don't actually check to make sure it's a valid Spanish ID.
Here is the best English<>Basque dictionary you'll find:http://www1.euskadi.net/morris/indice_e.htm
It has some typos, and sometimes you'll find a common word in one language that doesn't show up in the reverse search, but overall it's really good with a lot of examples.
Here's a pretty good picture dictionary, if you like that sort of thing:http://www.nabasque.org/Euskara/dictionary-picture.htm
And here's an adequate Spanish<>Basque dictionary:http://www.euskara.euskadi.net/r59-15172x/eu/hizt_el/index.asp
Here's a large news site with live radio and on-demand video with some shows in Basque. No subtitles/closed captions though, unfortunately:http://www.eitb.com/eu/
And here's a pretty good course in French of the Souletin dialect, with a small dictionary and some grammar reference sheets:http://zuberrotar.free.fr/index.htm