The Windows Vista Beta 2 download weighs in at a whopping 3.2 GB (even the product guide is over 70 mb). You can download the file or order a DVD. Microsoft is strongly pushing the DVD option, noting that their servers are under severe strain from downloads and that many customers are simply unable to obtain the software this way:
Microsoft, of course, has chosen to ignore the most efficient file distribution method in existence – bittorent. Chris Pirillo and Jake Ludington have, without any endorsement from Microsoft, created VistaTorrent with instructions on downloading the file through Bittorent. They also point to the Microsoft site that will generate a key for the software.