Actually in the setup I described, it sort of will. That's the point. You can set up the computer to use an SSD as a swap area for the HDD, which is I believe functionally the same as having a single SSHD without an SSD or HDD. In that setup, you can't manually use the SSD for anything; the computer decides what it does with it. In practice, it caches the most used files on the SSD so they don't have to be fetched from the slower HDD.

Is the Corsair CX600M ATX any good? It will add about £20 pounds to the final price. Is it worth it? I can't spend more than that.  

If you can't spend more then, yeah, it's probably worth it.  Corsair (Channel Well) is good.  Bronze is going to have lower quality parts but it's almost always going to be better than stock PSUs.

Why founders edition and not a third party high performance cooler? It will probably cost the same and will perform better. The rest looks good.

Edit: I know they arent out yet but I would wait

This will help with any PSU questions - http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Nope.

Go for it.
It's actually a 552W PSU on the 12v rail, it's a good step up from that other one.

They are available in Australia, I just assumed it was a given they would be in the USA.

Let me guess. Did Microsoft make the push that much easier? Haha

Nope what? Care to enlighten me? If I said something incorrect, I'd gladly be corrected and told why it's wrong. If I did happen to spread some misinformation, I'd like to make sure I won't do it again.

Yeap, they did indeed. 

I know you could set up a RAID 1 setup like you said combining say a 240gb SSD with 240gb of a normal HDD it would give you a very strange pairing of disks working together with the standard drive just being a backup of the SSD but at

http://ask.adaptec.com/app/answers/detail/a_id/17037/~/q-%26-a%3A-hybrid-ssd%2Fhdd-raid

They go into creating a RAID 10 setup with double those disks with the aim to get double the performance of an SSD mirrored onto a normal HDD space... that said you can't really use raid 0 over a mechanical HDD and an SSD, well... you might be able to, but it really isn't going to work I think as at the end of the day any files stored on the mechanical parts of the drive are still going to be effected by the spin up time and disk head speed to find the files on the drive phsically even if there is an SSD storing some portions of the files.

It's interesting to mess with different raid setups but in reality anything using raid 0 between SSD and HDD is going to be a strange combo.

That said, as for the SSD for OS/Programs and Mechanical HDD for media not making the media seeking work faster as permalite said, that isn't entirely true, While obviously seeking out the start of the Avi file to play on the mechanical HDD will still take the same lenght of time, having the media playing program on the SSD will allow windows to get that open and ready to receive the file far faster with a OS SSD than without. So while in a perfect world SSD's everywhere would be great for a standard user SSD's on the primary drive will do wonders for opening programs to assist a mechanical media drive.

As for an hybrid SSHD for media, again... only so much can phsically fit on the Flash storage point of that type of drive which the drive will determine based on usage of those files, if you have 500gb of movies on an SSHD it isn't going to  put 10mb of the start of each file into that SSD portion of the drive because you will not have used any of the files before wanting to watch them, they just don't have that flexibility or awareness to know you are going to be sending requests to watch individual files at a point, they just work on file usage as the drive works inside the PC.

amg... wall of text, for a noob user avoid RAIDs lol, I don't mean to use the term noob here in a bad way towards anyone, I more am substituting what I would normally say as beginner user with the term used byt the OP, don't mean to offend!