This PNY Pro-Elite SDHC card is a top choice. With read speeds at up to 53 MBps and write speeds up to 38 MBps, it's suitable for use with all kinds of equipment.
Best of the rest
Lexar Professional 1000x 32 GB CompactFlash Card
The Lexar Professional 1000x 32 GB memory card takes CompactFlash to a new level. With a read speed over 100 MBps, this card is very fast—even with pro SLRs.
SanDisk SDXC Ultra 64 GB
This new-generation 'Ultra' SDXC card is fast enough to keep up with pretty much any device. There are faster cards out there, but not at this price!
Best for Phones
PNY microSDHC 32 GB Class 10
This memory card is ideal for boosting storage in a mobile phone. It'd have been nice to see a slightly faster write speed though, as you'll have to be patient when copying large files.