I have a Sandisk Ultra II 2GB and a Lexar 133X 2GB. The Sandisk has obviously been around longer than the Lexar, but I haven't experienced problems with either. Sandisk's Extreme III cards are also said to be very good - the only reason that I bought the Lexar Pro 133X over an Extreme III is that noone had the Extremes in stock when I needed to buy another 2GB card. You can't go wrong with either brand, or the other well knowns for that matter.