Shock Absorber advice

I need to install new front and rear shocks on my 2000 Sierra. I can get a deal on Monroe Shocks. There are so many different models I'm not sure which ones to get.

I have a 1500 Ext cab with the Z71 package and the 5.3 liter.

Any advice, pros and cons of Monroe shocks?

Thanks in advance!

Monroe (gas charged) has been good for me.I just installed a $140 set on my 01sierra. The aftermarket AC Delco gas shocks are just as good and competively priced here. http://www.rockauto.com Use discount code number #645899560466 at checkout for a 5% discount on anything you purchase. Also check for factory rebates forms from monroe and others should you buy there.

monroe gas matics not only a good shock but there life warrenty as long as you own the vehicle...