DJ MK has re-issued both his seminal London Undergound mixtapes on one handy cassette themed USB stick. For a very reasonable price, you get remastered versions of Volume 1 and 2 along with a host of previously unreleased material from the original sessions.
They're limited to 200 copies so don't sleep and end up having to pay double on E-Bay in a few months from now (and don't ask me to upload it either!)
For details check Suspect Packages or email firstname.lastname@example.org
Volume 2 in particular is a personal favourite of mine. Along with Skitz's 'Countryman' album it captures that early 00s era of UK Hip Hop perfectly. Go get that!