New to wiscuba gps cordinates needed!!!

[scubert]

Equipment wise, get a pony bottle or doubles for a redundant air source, and a lift bag in case you get separated from your surface support.  A big orange balloon is easier to see than a little head out in the waves.

I second Omicron's recommendation of Kohl's book, but as the russians used to say "Trust, then verify".  Some of his #s are NOT good.

The best (and annually updated) local reference is "Jerry's Shipwreck Charts" put together by Jerry Guyer, who runs Pirates Cove Dive Shop in Milwaukee.  He's been diving and running charters to many of these wrecks for years, and is one of the most productive shipwreck hunters in the area.  I think he found roughly 9 that he has released the coordinates for in the last year.

Pirates Cove is on 11th and Oklahoma in Milwaukee and the ph#414.482.1430.  BTW: I have no affiliation with the shop, the man just deserves his props.

A few other quick words about being new to diving the Great Lakes,

Start shallow (>60-70').  Conditions on the bottom here are a LOT different than in the caribbean, 100' here feels like about 200' elsewhere. 

If you can, dive with a more experienced buddy.  It helps.

Don't take ANYTHING off the wrecks.  It's against the law.

Don't go INSIDE the wrecks.  Any overhead environment can KILL the unprepared diver.  Most wrecks have lots of silt that if kicked up can obliterate vision.  The most dived wreck off Milwaukee, "Prinz Willem V" took no lives when she sank, but has killed several divers in the past few decades.

If you haven't yet, I always recommend the books "Deep Descent" and "The Last Dive".  They are great reminders that you should be careful, and always dive your plan.

Also, have fun.  Wreck diving in the Great Lakes is about as good as it gets.  We've got a little of almost everything, and a LOT of some things.
You can easily spend your whole dive career out there and never see half of what is out there