Valve has announced the first pre-order details for a series of upcoming Steam Machines and when they'll be available.

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Though lots of Steam Machines have been announced , only a few will be available to pre-order now along with the Steam Controller. Doing so, however, will allow you to pick the hardware up several weeks before anyone else.North American gamers will be able to pre-order an Alienware Steam Machine, Steam Link or Steam Controller from GameStop or Steam as of today and get their order on October 16, with the official launch not happening until November 10. This offer is only available for a limited time.In Europe and Canada, GameStop, EB Games, Micromania, GAME and Steam are offering the Steam Link and Steam Controller for pre-order. CyberPower's Steam Machine is set to be available directly from its site in all regions. More information on other Steam Machines will be coming in the next few weeks.For a full breakdown on the variety of models, check out IGN's Steam Machine roundup

Luke Karmali is IGN's UK News Editor. You too can revel in mediocrity by following him on Twitter