oh surely there will be some weight... the farmers double is not light even when empty... its all the padding lah... but no big deal... the weight distribution is really good. so carrying your load will be easy on you..
I'd go with LowePro CompuTrekker, enough space to hold everything you listed, with room for expansion. Plus, its a backpack-style bag, which you'll appreciate after carrying the bag around for a few hours.
I went to take a look at the Crumpler Notebook/camera bags at CP just now
and was attracted by the nice red colour "Puppet" but its much smaller
than "Formal Lounge". I did not bring my laptop along and the
salesperson was not sure if it can hold my 15" laptop so will have to bring it
there again to try out. If its ok I'll probably buy the "Puppet" but it costs
$224 (after discount), much more expensive than "Formal Lounge" but has
more padding though.
or u can straight away get the even bigger one....schrinkle....but one note of advice ...crumpler bags tt can put both cam and laptop tend to be difficult to zip up...from exp...dunno if the others face this prob.....