I am by no means an expert on Linux and never used Debian before either. After looking at their download page it seems the download is huge for the whole thing so I'd probably go for the minimum 180mb network install disc image. You only need to download the packages you choose then rather than getting the whole thing which would be around 19gb.
http://www.debian.org/distrib/netinst
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1100t on M5A99x-EVO with 2x4gb and 6870 running Win7 on Force120 ssd in Corsair 600t cooled by H100. Folding for team 34106