This was a really good experience for me. My situation is not going to be like everyone else’s, so let me give you the low down on why, for me, it was a good fit.
Behance Full-bleed Portfolio Image.
UPDATE (18 March 2015): Since first posting this, the full-bleed background has changed from 725px to 724px.
I have been aware of Behance for quite some time but really never forayed into this portfolio space until recently, when I myself needed some updates and upgrades to my own portfolio (still updating).