Infiniti: Q45 recommended tires ?

Hello;

need to repalce (all) tires in my 1998 Q45;
does anyone have any recomendations ?

I look to spend no more than $100 on each (if possible),
and the best candidate so far is the Bridgestone Potenza G009:
found some reviews here
http://www.1010tires.com/tirereviews/Bridgestone_Potenza_G009_tire_reviews.html
and it seems VERY nice:
having coming from the litter supersport motorcycles drivers world
(drove a Fireblade for few years), and thus blessing the Q45 engineers
every morning and evening (the most responsive, sensitive and accurate
car I have ever driven), it seems to me these tires are almost a
perfect match: only noise seems to be an issue for some of the drivers.

also, the price for having all four of them installed is about $430.

an alternative is the Bridgestone TURANZA EL400:
by the reviews seems like a much (?) quiter tire, but wet/ice/snow grip
is way (?) behind the Bridgestone Potenza G009.
p.s. Price is almost identical.

any comments ?