Will either of these fit a large 15" machine?

I'm looking to get a new laptop bag since my old one is firstly a bit battered and secondly a bit too small for my new Dell m4600. Already after a few days there are some tiny wear marks where the zip touches the corners.

I'm looking for a smart shoulder bag with room for the laptop, power plug and a couple of large books/files. I think I've got it narrowed down to these two:

http://www.amazon.co.uk/Samsonite-P...iefcase/dp/tech-data/B002VPUYGC/ref=de_a_smtd

or

Wenger Business Coral Aktentasche mit Laptopfach 45 cm 15,4": WENGER SWISSGEAR: Amazon.co.uk: Computers & Accessories

Of the two I prefer the Samsonite - it looks to have better laptop padding. Does anyone have either of these two bags and can comment on whether they will fit the larger 15" machines like the m4600?

Any other suggestions appreciated. I don't want to spend any more than the samsonite.

 

I know its 'just' a case, but since I need to look professional and my current 15" case doesn't fit (without scratching on the zips) you can understand why I ask rather than just buying any old thing that has 15" written beside it

 

With a large 15", might be a better idea to pick one sized for a 17".

 

Good idea to make sure it has the little padding that velcros into the case to help cradle a 15" notebook in the case. I currently have a 15" case for my 11:36 (larger 15" notebook) but I have to take the velcro padding since my notebook fills the whole thing snugly. It would have been nice to get the same bag in a 17" so I could put my power brick along side where the notebook sits (with the padding separating the two).

 

BURN HIM AT THE STAKE!!

(...Or, the closet metro disagrees )