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I am unsure what/if any DRM these titles have. If it's an issue, wait for a GOG sale. I saw this message on some of the Neverwinter titles: Some of the individual games will not run on 64bit OS. I assume there is a workaround.
Some hightlights: Spellforce Complete $12.50 - http://www.gamersgate.com/DDB-SFCP/spellforce-complete-pack-…
Neverwinter Nights 2 Complete for $6 - http://www.gamersgate.com/DDB-NWN2C/neverwinter-nights-2-com…
Neverwinter Nights Diamond $3 - http://www.gamersgate.com/DD-NWND/neverwinter-nights-diamond