suspension upgrade question

The car is stock at the moment but, I figured I would start my mods by doing the suspension. It is a 97 Z28. I am rather new to this and was wondering what parts I should look at getting. I was looking around slp's site yesterday and found a shock and spring set that looked nice(http://www.slponline.com/view_product.asp?P=70002). What else would you guys suggest and were have you gotten the parts at? Price is a factor for me.

subframe connectors, trailing arms, panard rod, or u could box your existing equipment for more support than stock but alot cheaper than after market although subframe connectors are supposed to be a good investment

Subframe connectors, solid panhard rod, solid trailing arms, poly bushings...Check this site http://www.spohn.net/category.cfm?categoryid=1036

Thanks for the tips guys.
If anyone else has any ideas, I am listening.

strut tower brace helps too and if u want it u can get a steering box brace to keep it from jaring around so much during slow turns causing stress that could crack the box