keep doing legato exercises and very soon u'll find ur fretting hand have no problem keeping up to speed. do check out some picking lessons on ultimate-guitar.com also. picking hand technique is as important as fretting hand technique.
Btw, I'm learning picking exercises from the book called " Ultimate Guitar Workout " 1994, by Mark Nelson and Chris Conner. Anyone know this book? I find it nice, as the exercises taught are quite nice
@fretness : haha, I took the rebound train purposely to take the picture. It's at marina bay station, so no one is around actually