Take whatever time you're thinking it will take, and double or triple it. Things are going to be stuck on, you're going to misplace things, you're not going to be able to figure how something goes back together, you'll skip a step by accident and have to go back a few steps to correct, etc.
Here's a summary of the process I posted somewhere else: Engine removal is a fairly involved and difficult task. People like to underestimate their time, but I'd give yourself 10+ hours for the whole thing probably. You start by removing your exhaust, which hopefully wasn't welded completely together by some chimp at a muffler shop. I had extra fun because most of my bolts were stuck and required an extractor. Then you'll remove heat shields (easy). Next up comes the driveshaft, which isn't overly difficult, but a lot of people recommend having 2 people to assist. Then you'll remove the transmission, the back bolts are easy game, and you'll put your transmission jack under it. 3 connectors (4 if 95+) to remove from transmission. You'll quickly learn to cuss and wish you had smaller hands when it comes to the top 2 transmission bolts. You'll need a lot of extensions, 2 u-joints, and IMO definitely need a 2nd person. The transmission is a PITA coming off and back on IMO. I'd recommend removing pre-cats/downpipes if possible before trying to lift engine. Next you can move to up top of the engine. Remove front bumper, remove reinforcement bar. Remove radiator. Remove lots of connectors, piping and (heater core, ac, PS, etc) hoses. Get engine ready to hoist, again I'd recommend 2 people. Once hoist has some lift on engine, remove engine mount bolts. Slowly lift up, checking for engine rubbing on things, and connectors and hoses you missed. I thought I had done a good job, and still missed 1 sneaky hose and all of the electrical connectors from the alternator/transmission harness, and maybe 1 other. Eventually the engine comes out, and getting it onto the stand can be even more fun with the EGR in the way, and other stuff. The transmission bolts can be used to secure it to the stand, but I thought they were a little short, so I got slightly longer ones to use.
Oh, and no one has said it yet. Take LOTS of pictures at the different stages. It's easy to get lazy and not do this. Pictures can be a life saver. Another generic recommendation, set up a computer with internet access (and speakers

) in your garage. Having a computer handy is soooo nice for referencing the million questions that will come up.
You're going to need a 2nd set of hands for: getting transmission bolts off and transmission dropped, pulling engine out and getting it on the engine stand, putting the engine back in, getting the transmission and bolts back in, and really its useful for getting the exhaust back up too.
Also, sites like
http://z32.wikispaces.com/ and TTZD will become your friend.