I got the lo and sons bag on a recommendation here...LOVE it. It's the absolute perfect size and is lighter and has held up way better than my previous bag.

I think the leather totes from Madewell are hidden gems: https://www.madewell.com/madewell_category/BAGS.jsp

The large A satchel from kate spade saturday is also good: http://www.saturday.com/The-Large-A-Satchel/4IRU0162,en_US,pd.html?dwvar_4IRU0162_color=252&cgid=kss-accessories-bags

Here is a link to Lo and Sons:
http://www.loandsons.com/catalog/product/view/id/46/s/the-tt/category/3/?product=86

Lo and Sons - look for a 20% off coupon.

I second the Kate spade outlet

Vera Boxy Tote $118 in Microfiber
Once you put your laptop and other stuff in it wont be too heavy.

http://www.verabradley.com/product/Handbags/category/Totes/Boxy-Tote/1002129/defaultColorVariantId/183311/pc/1087/c/1105/sc/1134/p/1002129.uts?fromSearch=1

They have other cute bags that hold a laptop easily and are nice work totes.

I love my Tumi tote.

Le Pilage tote.

Look at the Kate Spade outlet, if you can get there. I was there the other day and saw lots of big leather totes fitting that description.

I need a new bag to carry for work. It needs to fit couple binders/expanding files, as well as all my general stuff (wallet, keys, assorted make-up, etc.). I will occasionally need to squeeze a laptop inside. I'd like ti to be professional, but still marginally fashionable.

I am having trouble finding anything that meets my needs that isn't a very generic black laptop bag. Any suggestions on a specific bag, or where to look?

TIA