First, do a search of the Tascam user's area. Then try posting there. You'll find a series of TM D1000 discussions.
As to which card, try the same thing. Learn the threads here, then do follow up searches on this database, and you will have quite a lot to work with. Next place to get questions answered is with the manufacturers; they usually have web sites and are accessible by e-mail. Then you will have more focus to your question.
Finally, no matter what card you decide on, plan to beef up your RAM. 128 MB runs much quicker on this stuff than 64.