Personally, my standard walk about is a 24-70mm f2.8 L + 5DMkII (without battery pack) I don't know why everyone said it feels like a brick leh.... I've been using it since 2008 and no complains when I bring it about with my 3 kids, travelling overseas (Free and Easy) and I rather this to a portable compact camera. The image quality is way worth it.... priceless in fact. Maybe bcos I am a dad with 3 kids and arms toned by frequently carrying them. They are still young and I do carry them with the camera around me at times, especially when overseas with family. Get what you think its worth bcos honestly, if you buy something your heart don't desires... you will keep thinking and straying and hoping... sleepless nights.. no point imo. Just my 2 cents. I am just toying with the idea of upgrading to MKII as well as upgrade my 70-200mm f2.8 L also to the MKII (damn tempted)... ;P Good luck with the shopping but if this is a hobby you won't ditch, I say go with your heart and get what you desire most.... not poisoning you... just my opinion as I've been there done that wasted more money for less
