Alright I am actually making an update, I ordered and got all my parts, after a couple setbacks I am actually on my way with this. I have had a couple big problems though, well one specifically, I don't have enough room.
I have two ways to resolve this, insert a bit of plastic (3/4" or so) in the area that the case splits at already, so I have more room to work with, it really won't be very noticeable, so I may just do this. Otherwise I might build a custom "CD-Rom" add on, like the jap SNES's got. Drop the HD and a DVD drive in there, and I'll be sitting pretty on something that can double as a full media center.
I am still iffy on the frontend though, I am working with MaLa now, as it works the same as Wahcade was. However, if I use Media Portal, I can get the same functionality, though at a bit heavier on the system resources. And it'll be harder to set up, but have inherent support for media files and be easier to implement PC games with, so this is a bit of a toss up. Also I am running TinyXP Beast edition (boot time 20 seconds with no front end)
I am gonna play with both while I ponder the hard drive dilemma.
Later,
Glenn