The Complete Book of Scales, Chords, Arpeggios, & Cadences is a very solid book of technique drills. I would start using it right now, but just focus on a couple of exercises per key. For example: start with scales hands separate and the cadences. When you get through the most common keys (up to three or four sharps and flats), you can revisit them, adding in more of the exercises.
Here are a couple of other links for books that you may want to look at:
This one is a bit more expensive and might be a bit harder to come by. It's the reference book for scales used in RCM examinations (Canada). (There might be a more recent version, but this is the one that came up in sheetmusicplus.com) It has a few more common patterns than Alfred's version.http://www.sheetmusicplus.com/title...ano-Technique-Book-2008-Edition/18354912
If you want a book that is free and has more step by step approaches to improving and learning your scales and arpeggios, look for Cooke's Mastering the Scales and Arpeggios. Here's a copy someone on the forums has posted: http://www.mediafire.com/?9mboe91hxmy