Some graphing calculator help...

[smearyllama]

Well, I have to buy a new graphing calculator.
Pretty simple.
I went to Tiger Direct, and found two TI-84+ calculators, one designated as a Silver version.

Well, it appears that the two models are almost exactly the same to me, from the site pages, and I'm confused.
If there's anyone here who's familiar with the model, could you lend me a hand here?

I don't want to pay for something I don't need, so if there is a difference, I'd love to know.

Links:
Cheaper model:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4102269&CatId=3407

More expensive one:
http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=4102268&csid=ITD&body=MAIN

Edit: Sorry, the first link was for Youtube, since I posted a link to the site here earlier.

 

[Vault boy Eddie]

I have the Silver Edition. It has SAT and other test reviews in it. It also has more memory. If its not that much more expensive get the Silver Edition, and look around for prices, cause I got mine for 120 at Office Depot.