I seen partners in my firm that carries Crumpler Messenger bags.
But if don't need to carry laptop, i think i rather carry folio
case or those black soft case for laptop.
Else if u need to lug a laptop like me, i use my Crumpler messager
bag.Unless meeting clients i use the dell laptop bag
provided.
Remember comfort is impt. I seen lady executives who got soo pissed
with the laptop bags issued with their laptops that they come to
office cursing and throwing the laptopbag on the table ..

Most of them switched to Samsonite, others who are feeling rich go
for brands like Gucci, LV. I personally like this brand called
Mandarina Duck and they are starting to resurface in major
departmental stores like Taka and Planet Traveller.
Some like sling bags some like backpacks. It really depends on what
u like and how u feel. I want my back, therefore i am planning to
buy a backpack. its more pratical and gd for the back