Here are some simple finger exercises that really build 
finger strenght. Please Rate.

Finger Exercise 1
e-1-4-2-3---------------------------------------------
B---------1-2-4-3-------------------------------------
G-----------------1-4-3-2-----------------------------
D-------------------------2-3-1-4---------------------
A---------------------------------4-2-3-1-------------
E-----------------------------------------3-1-4-2-----

Finger Exercise 2
e-----------------------------------------1-2-3-4-----
B---------------------------------1-2-3-4-------------
G-------------------------1-2-3-4---------------------
D-----------------1-2-3-4-----------------------------
A---------1-2-3-4-------------------------------------
E-1-2-3-4---------------------------------------------

Finger Exercise 3
e-----------------------------------------------------
B-----------------------------------------------------
G-----6-7-9-7-6-------6-7-9-7-6-----------------------
D-7-9-----------9-7-9---------------------------------
A-----------------------------------------------------
E-----------------------------------------------------

Finger Exercise 4
e----------------------------------12-13-15-----------
B-------------------------12-13-15--------------------
G-------------------12-14-----------------------------
D----------12-14-15-----------------------------------
A-12-14-15--------------------------------------------
E-----------------------------------------------------