Spooks DVD's

[SweetTea]

I'm hoping to start buying the DVDs soon and I'm curious if anyone knows if there are differences between the region 1 (US) and region 2 (UK) versions as far as what material - such as bonus features, commentaries, etc. - is included. I'm in the States so if I go with the region 2 versions I'll also have to invest in a new DVD player that can be hacked to be region free, but that wouldn't bother me much. However, if the material is the same, then I have to decide between the much lower cost of the UK versions (even with shipping to the states) and the convenience of the US versions and not having to worry about having a region-free player.

I do have to admit to having a preference to the packaging saying "Spooks" rather than "MI-5" but that's just me being a purist (my husband would just say that I'm picky.)