If you need a few helpful hints to lower your handicap the most productive way is to improve your short game.  If you need some help see these tips from the pros.

http://probablegolfinstruction.com/

Should you re-grip your clubs?  The answer is probably Yes as it is recommended to do so every year.  I do not think you need to re-grip every year, but most average players have never re-gripped their clubs.  See the advantages of re-gripping on Golf Pride's, the #1 Golf Grip Maker's, web site at .http://www.golfpride.com/faqs.aspx. 

Learn how to grip'em and rip'em. 

Are you having trouble breaking 100, 90, 80 or 70?  You may want to checkout the article in Golf Digest that gives some good tips.

The different flex's, length's, lie's and grip sizes can be confusing, but it's easy to understand once you have gone through a fitting exercise.  I recommend you do the Ping Web-fit online.  Just get a tape measure and click on the link below. 

http://www.pinggolf.com/flash/webfit.html

If you do not know the difference between the Callaway X-14 and the Callaway X-14 Pro just take a look at the Callaway Official Web site.  It gives you the specifications between the different clubs.  The X-14 Pro may be a better fit for your golf game.  Check out the link below it gives you specifications on all the Callaway clubs.

 http://www.callawaygolf.com/en.cg.ClassicClubs.SteelheadX14Irons.specs-1.html

If you want to make a decision between which Ping irons to use check out the Ping Official Web site that talks about the differences in the new and the Ping classic irons.

http://www.pinggolf.com/irons_classics.html

 http://prolinecustomgolf.com/Custom_Made_Golf_Clubs_Golf_Club_Length_Fitting_Chart.htm#Club%20Length

http://www.prolinecustomgolf.com/golf_club_lie_angle_fitting_chart.htm#Lie%20Angle