I want a medium sized diaper bag one for 2-3 days trip that won't be too heavy to carry. I also want one with more pockets for stocking things and cell phone. I have one that I don't like because it doesn't have pockets and is too heavy and doesn't have good access to the contents. Could anyone please give some valuable suggestions?

There are a lot of very nice diaper bags out there, and places like Amazon.com have a huge selection of designer names.

If you're looking for functional and great utility, though, Luvable Friends diaper bags have a lot of pockets, pouches, and places to hang or store things. You can see some online at the Diaper Bags section of Baby Mall Online.