The online store where I bought my LED lights is currently out of stock but I do have some alternatives for you. You can get them here for $3.98 for 10 (free shipping), here they are $3.95 for 7 or $6.40 for 14 (free shipping), and here they are $3.50 (but there is a shipping charge).
To give you an idea of how well these LED lights work, the first three images were taken in a dark room (after sunset with no other lights on) using 9 LED's and the final images were taken with a lamp on in the background using 7 LED's. All were shot with a 60mm macro the lens within 6-8 inches of the subject.





