Nokia 6260

I have a few questions I am debating between this phone and the nokia 6170. Its a $70 difference for me to get this one vs the 6170. Does this phone only take MMC or can you use a regular SD card? Is the camera truly VGA, i heard rumor that it was higher res. What are other differences between this phone and the 6170 short of no external screen, bluetooth and a memory card slot? Is the OS basically the same between the two? Is the case on this phone all plastic? How are the PDA features of this phone, can you put addresses in your phone book? Whats this I hear about a wireless keyboard option? Any help or push in one direction or the other would be helpful, thanks!