You definately will not rub.
As far as struts go.... anytime you lower, get aftermarket struts... the ride may not be extremely bad like bluebob's isn't... but the strut cannot handle the rebound of the new spring rate. It's definately in your best interest to get new struts because otherwise you'll be paying for the same job twice.
New struts can be had for 300ish + shipping... check out
www.shox.com and use the maxima.org discount