With Xreas the easiest way to lift it is with Spacers. You can go with a 1" front leveling kit, or go with a 2" front/ 1" rear, and there is also a 3" front /2" rear. Like
eskimochaos said, I have had both, and it also depends on whether you want to upsize your tires. The 2/1 looks alright with stock wheels, but the 3/2 you will want to go with larger tires to fill the wheel wells.
As for other modifications, how about tinting your windows, adding a skid plate, or vent visors? Also, if you plan on keeping the stock exhaust, a Valor Exhaust Tip helps cover the nasty rusty looking stock pipe.
Feel free to look through my signature for ideas.