With so many SD cards out there, I have no clue which one to get. All I know is that I want a 2gb card for my Pentax K100D. These are the one's I was considering, which should I go with and why? PQI 2GB Hi-Speed 150X $23.50 http://www.meritline.com/pqi-2gb-150x-secure-digital-memory-sd-card.html Transcend TS2GSD150 150X $19.75 http://www.amazon.com/dp/B000ARLOE4...e=380333&creativeASIN=B000ARLOE4&linkCode=asn Kingston 2GB Elite Pro 50X with TravelLite SD/MMC Reader $25.95 http://www.meritline.com/kingston-2gb-elite-pro-50x-sd-card-with-travellite-card-reader-kit.html I'm leaning towards the Kingston offering. I like having a card reader so I can transfer files to the computer with ease, I can also use it with my cell phone mini sd card since I have the SD adapter.......I can transfer mp3's/videos/wallpapers to it without having to have the phone hooked up to the computer. But are the other cards that much better that it would be worth doing without the convenience of the card reader?