First off, it's great to see how many modded vehicles are out on the streets but there is always that line between great modifying and just wrecking the look of the vehicle. For starters:
1. Lowering a truck properly involves changing the chasis, suspension, and drivetrain. Replacing the stock rims with rims that are 3 - 5 inchs smaller does not count as a lowering job.
2. If you do decide to lower your vehicle, you should really think about getting hydraulics in place (i know they aren't cheap but the will save time when entering a parking lot). I've seen too many people 'round calgary scratch the whole underside of their vehicl because they have only lowered the suspension and have not added a way of raising the suspension.
3. Altezzas are great, but only for some colours. If you own a dark coloured vehicle, get carbon fiber tail lights and not altezzas. Carbon fiber will always look better on darker vehicles because... well.... they generally match colour. A black car with white altezzas just looks horrible driving down the street.
In all, i figure if you want to make your vehicle look great, do some research before choosing what goes into your vehicle.