I'm looking to replace my 2005 G35 with possibly a 2007 G35S - I'm starting to have weird intermittent electrical probs with the 05. I'm beginning to become concerned as most of the time it involves the flashing airbag light. Which, so far I've been able to extinguish by cycling the ignition key... But it's starting to appear more often after I managed to keep it off for about 3 months.

What problem areas should I look for in this generation (07-08)? They seem to be pretty robust. I drove one this weekend and it seems like a big step up. Thoughts?