Corsair GT might be faster but second fastest is the Lexar Lightning.
Lexar links
I bought on a Fry's B&M for 29.99
here
Lexar claims:
4GB capable of minimum sustained speeds of 30MB/s read and 21MB/s write?ideal for quickly transferring vast amounts of data.
I have the 2GB model and I benched the read speed with HDTach and I got 25MB/sec and benched write speed it by transferring a batch of large files (400+MB) and a batch of small files (2MB and less). For the large batch it was 16-18MB/sec write and less than 15MB/sec for small files.