Well I'm gonna go with the Talent - I think I've seen one on Amazon-UK for £155 ($175)...sorry to be a pain but can you quote me the exact SSD from Talent (size, series, Part Number etc.) that you used in your 5.5. I'm just not that experienced in modifying stuff (yet!) & would hate to spend that kind of cash on the wrong drive.
Here is the info:
Model number: FZM28GW18P
Photo to show you how it looks and dimension wise, same size with a little wee bit smaller than a 30gb drive, about the same thickness. If you wanted to switch the backplate with a 30gb one to make it even thinner you can, on eBay numerous vendors of 30gb back plate but you also have to buy the jack, the 80gb jack ain't fitting in a 30 gb back plate.
I am showing you the SSD in comparison to the standard 30gb iPod drive.