I have a 92 toyota pickup with stock tires, shocks, and body kit. It looks kind of lame being so low. So, I am trying to find the best way to raise it to a good height. Would replacing the shocks with bigger ones give me space to put on bigger tires?

You can't do it cheap if you do it right $3000.00 to 5000.00 just in parts if you can find them for that year good luck

Unfortunately it's not as simple as replacing the shocks to add lift. Just keep in mind with bigger tires fuel mileage will drop and you may need to change the gear ratio.
This company has a 3.5 suspension kit with shocks that allows clearance for 30 tires. The cost is about $839 minus installation.

http://www.4wheelparts.com/Lift-Kits-Suspensions-Shocks/3-5-in-Performance-System-with-Performance-Shocks.aspx?t_c=1t_s=38t_pt=5491t_pl=1906t_pn=FABK IT614

The cheaper alternative is a body lift which raises the body off the frame with spacers and it can be used with stock shocks. It's price is about $131 minus installation and can be found here:

http://www.car-stuff.com/toyotaliftkit.htm

alright, heres how it goes, its a yoda and anything will put it higher. On my 87 4x4 I put on 35's (10.5 wide) on with stock lift and no special preformance parts... had to cut fenders a little bit but just that added 3 1/2 inches to my clearence. also a body lift kit is only about 150$ on the net.

lol well you can put blocks on it i always thought that look really crappy. But it's cheaper than anything else. but like the guy above me said. I got 31s on my truck now. it lifted it a good 2 inches maybe. but I get grinding on my wheel well. So i recomend lifting it maybe an inch at most to clear it. Unless you can deal with the grinding sound haha. It's kind of embarrassing to say the least.