Wow, I certainly like this! These both work together (I see the little warning about making sure the motherboard works with the video cards) Also, I would like to know what an HDD is (OS is operating system right?) I'm sorry if I'm asking obvious questions, but I've never truly been involved in computer components. I think I'm getting a little confused on all the choices out there. Hehe, Thank you,
Conrail45
Also, I will probably use the tower case I have now. I may not buy these things, due to the fact I've never heard of them before, nor do I feel completely comfortable buying such large purchases online.
HDD means Hard Disk Drive. You're right, OS is Operating System. You might be able to save a bit reusing your existing case, maybe enough to get the i5. I can only think of two things you MIGHT need: 1. Although the CPU fan has thermal paste on it (this helps transfer the heat from the CPU chip to the cooler) I like to add a tiny bit more. When I say more, I mean a bead maybe the size of a very small pea. I use OCZ Silver Thermal Paste. This costs $8.00. Second, a lot of people overclock (meaning pushing the CPU and/or memory past their advertised speed rating.) I personally don't bother since it can cause instability and it's not worth it to me, but if you want to try this, I'd recommend getting a better cooler (more speed = more heat) than the stock fan that comes with the CPU. This, of course, is an extra cost and there is a learning curve to it, because if you push a machine too hard, you can really mess it up.
As far as buying online, I've bought from Tigerdirect dozens of times. They're very reliable - I have never not gotten something, and only once had something that was "not as advertised", a $5 SATA cable - and they have a good return policy. You can always phone in your order too, just make up a list of what you want.
One other thing: If I were buying the i5 kit I'd buy this mobo (motherboard) instead, partly because of Gigabyte's reputation and because it is forward compatible with the upcoming USB 3.0 and Sata-III:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=6076254&CatId=4725
But it doesn't appear to support the i3. And it costs more.
Oh, and if you are reusing your case, make sure it has fans in the front AND back. Old cases may not cool adequately for modern designs. Keeping modern computers cool is a huge issue. Personally, I'd spend the $50 for a decent case, unless you know yours is modern.