That makes me sad. ::teardrop falls into my protein shake:: Geez man, no barbell, no workout partner. I'm glad you're even lifting at all.
Very important question...How heavy do the dumbbells go?? If you've got a set of dumbbells, plus some cables, you're golden. A barbell would be a luxury that you're not afforded. The EZ Curl bars are gravy.
Any move you'd do with a barbell, simply use 2 DBs for. It's not ideal but, 'twill do, 'twill do. Instead of back squats, you've got DB deads/squats. Also DB overhead squats (1-arm'ers = tons o' fun). Chest, back, and shoulders are mostly self explanatory. You've got to play with the hand you're dealt. I don't think you're actually in too bad of a situation.