Yep, thats certainly the cheapest option.
Thanks for the replies, I think that the Sdrive NUXX (are their any other manufactures offering Sdrive?) is the way to go then. I'll certainly need to upgrade to 48k first as you guys suggested. I read that Best Electronics have an upgrade for $20, but I cant' see anything on their site, so I've sent them an email.
Thanks again for the replies.
Cheers