I better make everyone aware of this site.
www.pricewatch.com You can purchase computers, software, upgrades, and several accessories at this site.
The wholesale computer companies post a bargain on this site and compete with the other wholesalers. There are several including
www.newegg.com whom have dirt cheap prices.
I caution you to make sure you investigate the wholesaler and look at the user reviews of them to make sure you are going to get what you need.
Please if you do buy something let me know so I can check and make sure it is what you need. Some ram they sell is not compatible with all computers and so on.
Every time I build a computer I price it retail. Then I price it using that site. I have saved 1000's of dollars!
That's your sign :-) lol