They have a deluxe special edition up for pre-order right now, which contains the game, an artbook, a soundtrack CD and a superplay DVD! It's quite pricey at 80 Euro, but a cheaper regular edition to due to be put up for pre-order soon. If you do want this one though they only have just over 100 copies left so be quick!
At this rate we are going to get hopefully SIX Dreamcast games this year: Sturmwind (eventually), NEO XYX, Redux: Dark Matters, DUX 1.5 and Pier Solar! Phew!