Any thing wrong with this idea...

[az]

Well, it's nothing a home user should be overly concerned about, IMHO. If it's a relatively fixed installation and you're not tossing the drive around or have a cat that plays with the cables, just using ordinary SATA and just having the cables come somewhere out the back of the PC should be no problem, and you won't need to buy an SATA controller card with eSATA port.

[Wombat]

I disagree, from personal experience. If you're in a particularly noisy environment then you can have signal issues.

You don't need a SATA card with on-board eSATA, there are eSATA conversion jacks that are make to take a PCI slot.

[az]

Can't hurt to just try the cables you've already got, you can still buy others later on.

But RhinoZ has found his solution anyway