Elizabeth and James' sequined sweatshirt retails for $465 at Saks Fifth Avenue.
Loving the Elizabeth and James version but not loving the price? J Crew just added this Jaspe sequin sweatshirt to their site and it gives you a similar look for $150 (saving you quite a bit of cash!). Click on the photo below to purchase.
*Update - 12/16/09* - If the J Crew version is still more than you were hoping to pay, New York & Co. has a great alternative that retails for $32.95 and also comes in black. Click on the photo below to purchase.
*Update - 10/4/10* - Forever 21 now has a sequin mesh panel sweatshirt which retails for $19.80. You can click on the photo below if you're interested in purchasing. (Note: This post is from last year - 2009, so some of the alternatives above may no longer be available)
Here are two more options, thanks to Julie for sending me this Vince option. The first is by Vince and retails for $275 and the Ella Moss version (#2) retails for $98. Click on either photo for more info.