Coming from the kid who put his lift on Senior yr of college my advice. Save up until you can afford the full lift, OME/Rancho or equivalent.Took me a little while but when I first asked on the forum like you, I thought a spacer lift will do me fine, I got bashed(politely of course) and was told not to bother and save for the full lift.
I kept battling with people asking them why Spring/Shock lift over spacer. Soon found out why and made the decision that I was gonna buy the lift piece by piece. Well I did it I got all the parts and then came to my next problem. Figuring out how I was gonna get this baby on. Luckily the people on this board are very friendly and willing to help out. Set up a lift party and for the small cost of some breakfast,beer,lunch,dinner for the guys. We basically installed my lift and a crd lift for much less than the cost of a shop. When you wake up hungover Friday-Sunday do the little thing we liked to do called "damage control" (checking how much money you spent last night cause you were so drunk you couldn't remember) and throw whatever you can in a Lift Fund. trust me sounds stupid but , thats how I got my lift faster than expected.
Me being greedy and wanting to get the most lift for as cheap as possible went with :
Front:
OME 927 springs
Rancho17505 Shocks
Boiler 3/8 top plate
3 ring clevis
Teraflex bumpstops
Rear:
OME 948 springs
3 upper iso pads each side
Rancho17004 shocks
hockey puck bumpstops
all for about $650
you can check
http://www.jeepinbyal.com/http://www.4wd.comhttp://www.boulderbars.com/kjproducts.htmjust a few