are you wanting the second HDD to extend from the current partition? Then you go into disk management (should be in administrator, if not goto start run type MMC and add it as a snap in), in there do the above listed. THEN right click it, set both as dynamic, then set the volume to spanning (combining 2 physical HDD into one partiton)
If you argue with an idiot he will drag you down to his level and beat you with experience.
I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.