This bag, the Trust 16744, has two compartments (main and side) with separate pockets in each. It has a shoulder strap and, in this version, a mini mouse (white).
Main compartment: the 1005HA; 1/2 of the Eee power supply (the bit without the plug - I could probably get the plug in but it is awkward and might damage the Eee) and an external DVD reader/writer (both in main compartment pocket); DVD reader/writer cables (in an old soft spectacle case to protect the Eee).
Outer pocket: The rest of the power supply, including the plug (though not prettily); the white mini-mouse; several DVDs (in thin cases in one of the side compartment pockets); Sanza fuze MP3 player plus cables.
... and there is a still a bit of room to spare! In fact, you can put a thin neoprene sleeve, such as the Sweex Sa131 10"neoprene Netbook Sleeve Sunset
, round the Eee and it all still fits, if a little less elegantly.
It is well made and adequately padded and does the job fine.
I also have the Trust Netbook 10 to 12 inch Carry Bag Classic 16704 Trust Netbook 10 to 12 inch Carry Bag Classic 16704
which is better padded (for example, the outer pocket is also padded - it is not on the 16744) but does not have a shoulder strap and the side pocket is velcro rather than zipped. To give an impression of size, its main compartment alone can take the whole of the 16744 when fully packed as above (with the Eee in a neoprene sleeve too, a bit like a Russian doll), and the side compartment is quite large - so it certainly has plenty of room.
If you are trying to minimise size whilst carrying everything, the 16744 (the product reviewed here) is probably the better bet. If you want more padding and room for even more extras then the 16704 is a cheap solution.