You are going to hear a lot of anti-chrome responses, with good reason. Big chrome wheels just don't look good on an Accord. The are also generally real heavy, so expect a decrease in acceleration, braking and perhaps gas mileage. Leave em to the SUV's and rappers.

18 or 19...your call. 19 looks great, but for everday driving, I'd go with 18s. That's what I have, I like em. They'll give you a bit more tire for a decent ride and protection for your wheels. A 2-2.5" drop or so with 18" will give you minimal wheel gap. I have 2" up front with 1.5" back, I have about a finger-gap all around. Wheel style will also affect how big they look to an extent. Wheels with a lip look smaller to me than wheels with spokes that go all the way to the edge of the wheel. My old 18's looked a bit larger than my new ones at first glance IMO.

Please keep the OEM kit and trunk spoiler. That's what will look best. If anything, the WW kit is the only other one I'd do. Since you already have the OEM kit, keep it, they look great.

I wouldn't do limo tint. You'll get hasseled, and IMO it just looks too dark. Esp on red.

HID's are sweet. Best thing is to retrofit OEM projectors in your housings if you can swing that.

Exhaust, up to you, just don't get real guady with cheap-looking add-on tips, you'll be okay.

Really though...drop the car first with quality spring/shock combo or a complete coilover system like TEINs. You may love the increased performance and decide you want to go more with a peformance theme than an all show with chrome wheels, etc.