Having just purchased a D2X, I am now in need of more memory cards. I have a Lexar 1GB, and a few 256's which are basically useless now unless I wanna shoot 11 images. So I am looking into 2GB cards. The Kingston 2GB 50x cards are $130. The Lexar 80x 2GB cards are about $190 and the Sandisk Ultra II are about $90. BUT the Kingston 4GB 50x cards are $230. So for about $30 more I can get a 4GB card. Its not as fast as the Lexar or Sandisk, but its close and I dont NEED the write speed. So will the Kingston be just as reliable as the Sandisk and Lexar? I have had no problems at all with my Lexar 1GB card, so I was ready to plop down $219 (-$30 rebate) for a 2GB Lexar, but noticed for about the same cash get double the storage. Thoughts?