http://www.givemefootball.com/pfa-transfer-list
Fascinating list from the PFA's website....and you can even make an enquiry if you want them to come play for you!

Notable names on the list for me include Giles Barnes (lost his way at WBA, but remember him at Derby? only 22 still), John Carew (probably couldn't afford him, but only 31), Danny Gabbidon (again only 31), Eidur Gudjonsen (Iceland!), Diamonsy Kamara, Seb Larsson, Benny McCarthy, Nigel Reo-Coker (his buddies Jobi and Mikele are here!), Jonathan Spector (only 25 - seems like he has been around for ever), Danny Webber. I'd happily see any of them play for us. Anyone I've missed? Might not all be affordable, but who knows......
There are loads of Reading rejects on there (Alan Bennett, Joe Gamble, Lloyd Owusu, Bas Savage etc) as well as the likes of Lee Bowyer, Kevin Phillips and Keiron Dyer who are past it and/or too injury prone (?!).
Not sure how up to date the list is...one or two of these players have signed for new clubs I think. I haven't included Jay Bothroyd for example as a) he is signing for Everton (?) and b) he is a cheating toss pot.
An interesting way to kill 20 minutes if you want to take a look.
As an aside Liam Head is on there. I really did sign him in FM and he got 30+ a season. Albeit in the conference

EDIT: Realise there is a prem freebies thread....this site covers all leagues