I bought the cutest Betsy Johnson baby bag ever! And I purchased it from Burlington. Of course I'm having a girl and it ran be 60bucks. Definitely worth the money.
What theme are u going with im doing a Mustache Theme for my lil guy i found cute diaper bags on Etsy.com
If price isn't an issue, I received a coach diaper bag and it's adorable and I've been using it for 3 years and will use it for this baby too.