S'alright mate, I've just started an Arsenal save and picked him up for £5.5million I'll see how he gets on, he's always performed for me when I've signed him before Toby Alderweireld is another decent ball-playing CB as well available for around £9million but you probably know all this!
Really good guide mate. Just a couple of things:
1. Sebastien Frey has a release clause of 10.5M for foreign teams, so you don't need to pay 13M.
2. Phillipe Mexes is a fantastic signing for about 8M. You do have to pick him up right at the start though, as he ends up extending his contract which increases his price if you don't.
Rene Adler has also a release clause of 17.5m otherwise nice guide.
I'd actually recommend hanging onto Squillaci as he makes great cover, he doesn't moan about not being played and has - i think it's a trait or PPM - of never allowing opponents to get past him.