Please rate this HTPC build

I'm not a newb to building computers but I'm a total newb to anything related to HTPC computers.

After doing some research and hearing about all the recent advancements in tech I came up with this.

Intel Core i5-661 horray for awesome on board video!

Gigabyte H57 motheboard or the asus h57 mobo which one would be more cost effective? ie is there any significant benefit to the asus?

Ceton quad tuner still not released yet, i know, but this is all in the planning stages at the moment anyway.

6GB DDR3 1600 Is this a good amount of ram? I would certinaly want enough but not looking to buy more than is necessary. ceton recommended minimum of 4gb IIRC so i thought 6 was a good number, ie not bare minimum but not excessive

a bunch of these for storage

No video cards! - possible?

I'm still up in the air over a case to get, a remote control solution, and what software to use. All constructive criticism welcome!

Thanks alot for the responses.

I went with that chip and mobo because it had really good on board video meaning I wouldn't need a video card. If I went with a lower processor, I would need video cards then right? I thought most on board video chip sets would not be able to do it. If what you guys are saying is true, maybe I should scale it back some. I could probably save myself a couple hundred bucks that way which would net me more hard drives!

Are those hard drives good? I remember reading that green drives aren't good with RAID. Is RAID necessary for a HTPC?

Also, I'd like to get some peoples opinions on software. I've heard of MythTV and I know that Windows 7 can do this stuff. What else is out there? Who is using what and do you like it? I'd like to hear some personal opinions on various software for recording and playing back TV if possible.