I agree, go with the suspension first. I just finished mine today...Skunk2 coilovers over Tokico blues...I love it so far.
But spending that money depends on what you want to do with it too...if you want to just improve the 1/4 mile time, you may just want to throw that money into a turbo or supercharger. If you want to improve handling, performance, looks, etc, I'd say go with the suspension and then the basic bolt ons (I/H/E). Should be a tight setup! Good luck whatever you go with!