I am looking at higher capacity CF cards for my digital camera. I am looking in the 128-256meg range. I have noticed that some cards like Lexar offer 12x cards. I was wondering what the difference would be between say a regular Sandisk 128meg card and a Lexar 12x 128meg card? Would it be worth the extra $40Cad for the 12x Lexar? Another question is, speed aside, will the pictures be better with the Lexar card as opposed to a Sandisk card?