looking for the best SD card to get

Can anyone tell me the best SD card to get for my icn 510, Looking for something like a 512/ 1gig.
if anyone knows of cards like this at a good price or a web site then please let me know
Many thanks

[Stevie]

check out Kingston, have a look at http://www.totalpda.co.uk/1GB-Kingst...ital-Card.aspx

Thanks for the link Steven but i have been told that i need a High Speed SD card for my Navman icn 510 if i'm to run anything above a 512 card.