I currently have a stable of D300/700 bodies with a whole bunch of lenses and equipment. Problem is on family trips and such even the D300 feels heavy after awhile, (The D700 is noticably heavier). I've been looking at the D40/60 as these are definately smaller and lighter. I like the decent cropped low-light performance my D300 gives me and from what I understand from my D200 days the D60 sensor is already quite noise at 800+ ISO. The D90 also uses the same battery type as my other bodies. My question is to those who have upgraded from the smaller bodies, is the D90 much heavier/bulkier than your old camera? I also have alot of screw driven primes which will have to be manually focused, but I was willing to overlook that for the lighter weight/size.