Honestly, don't get the Nutra bulk Mono.. I got 4 tubs and it mixes really poorly, they are still sitting in my closet. It's chinese creatine so impurities are big possibilities also. FYI I felt like crap usually after taking a dose UNLESS I mixed it in a blender, but even still...
I got ultimate Nutrition's Mono, which is good.. since creatine is so cheap, just pay the 20$ for the 1000g tub.
Primordial Performance's creatine looks to be very good and very cheap as well. It's creapure which is the best.