Lowering my 98 GT

I did some searching, but being at school I couldn't look around too much. I purchased a set of Eibach Sportline lowering springs and want to put them on my Mustang. I know I will need the camber/caster plates, so I'm going to have to wait untill I can get some of those before I lower it. My questions are

With my stock 245/45/17" tires, will these be rubbing in the fenderwell and whatnot?
Will my Mac O/R H scrape?
Will my ebrake cable rub on anything?

I know you guys cant tell me for sure what will happen, but You guys have alot more experience than I do with mustangs. What typically happens when you lower one of these cars?

I also have one more question regarding my rear end. The car doesn't whip out if I floor it when I turn to the right, but if I gun it and turn to the left it whips out. It does this pretty much regardless or conditions. Is there something wrong with my car? My dads vette has a posi and it whips out really easy
 
The Eibach Sportlines will make your 98 GT look good.Like Jeff
said take it easy on the speedbumps and don't bottom out you
should be fine.You shouldn't have a problem with 17" wheels
rubbing with Sportlines.Anything is better than the good old
4X4 look.