Great start teasider!
I really like your model so far. I think some details in the body would add to your alien, but already he has a lot of character.
I have also heard that nurbs are difficult to learn. I gave up after a couple of weeks and moved onto polygon modelling, which seems to make more sense to me.
I wish I could quit my job so I could focus on Maya.... chance would be fine thing! Oh well.
Keep up the good work teasider!