I am using my Dersou for my 17 inch MacBook Pro on a daily basis. Works like it was made for it. If you have a standard 15 inch laptop, you sure will have more options, like the ones suggested. Always make sure that it fits.
how about a black Epi Sac Plat? it comes in two sizes now and you can use the bag by itself - it doesn't look like a laptop bag. i just think hand-held suits women better than a cross-the-body or shoulder styles. jmho.
I would love to get some suggestions as well...I was looking for the SMALLEST and SIMPLEST shoulder/messenger bag for my Dell Notebook which is very small (12" X 8.5")...Any ideas? Something REALLY BASIC...