Season 5 - just released. RRP is £49.99 but can usually be found for £24.99 (Play.com). Just released so it makes it even more of a bargin!
There might be a few HMV vouchers (McDonalds Monopoly?) but I havn't looked/tested any yet.
Back with a bang, season 5 of "24" opens with an orgy of destruction as several main characters and sacred cows of the show are slaughtered by unknown assailants within the first few minutes. Jack Bauer (Kiefer Sutherland), hiding out as a roughneck with an awful hairstyle, comes back to life to avenge the deaths of his friends.
PS: Hopefully I got everything right!