Question about Printing

[porkchop2785]

I know this really doesnt go here, but i wanted to hopefully get some fast responses,

I am going tomorrow to have some pictures printed at Costco, is it better to take them the full rez jpeg and let them do the cropping or take them one I cropped in PS, The reason I ask is when I crop them and take them to work and print on an HP 8180 the printer still chops off some of the pic....just wonder so I can get the best possible print,

also whats the best or more common size, I guess it doesnt matter since they are 10mp but I want something maybe poster size...just wondering, never had anything printed larger than 8X10 thanks

[Corrie]

Crop it to the size you want, that way nothing gets cut off.

[kenw]

crop to the aspect ration but do not resize.