[Fasterthanyou]

Ignore the guys above me, HAHA
LCA relocation brackets, sticky tires, more horsepower. In that order. The stock LCAs are fine and if anything the compliance in the mushy bushings is good for preventing impact at the tire (kind of like a push rather than a punch). This is why with proper geometry (LCA relocation brackets) and sticky tires the STOCK suspensions hook the best for straight line acceleration. The rod end LCAs are noisy and don't last long but they are great at elimating any binding. As for the torque arm, that's a toss up with me. If you've got the cash then yes, it's a worth while upgrade but you don't NEED it to be cutting good 60's, it's like one of those mods that doesn't really pay for itself unless you have the other stuff done.
Sticky tires are the number one upgrade. They are your buffer between your horsepower and the pavement! Sticky tires lower your ET with the best bang for the buck but with the LCA relocation brackets you'll hook with any tire.
The last step can be accomplished with some laughing gas if you're on a tight budget.
The s.shifter will help make up for your driving skills and is a worthy investment if you're constantly missing the 2-3... but it won't do anything for your launching!