The best Multi I have ever used is Double- X (Nutrilite). You need to find an Amway or Quickstar dealer to get them. They are about $50 for a 2 month supply but I only take them every other day, they are unbelievable potent. Nutrilite is 100 years old, oldest Vitamin MFG. on the planet. They grow, process, and package everything, all natural, themselves. No other Vitamin MFG does this.
They have everything you could possibly want but Double -X is the cornerstone,
you will have more energy than you know what to do with.
I alternate this with a liquid mineral, Sam's club has one called "Glacial Milk", which is good so does GNC (liquid silver). The best is one from Majestic earth, Dr. Joel Wallach's products. There used to be a tape called "dead doctors don't lie" you should be able to get a tape or cd of it, good listening.
He basically took farm animals especially pigs (which have a very similar immune system to humans) and spent years studing the effects of depriving them of specific vitamins or minerals, and found that 95% of all diseases can be prevented taking the right combinations of these. Tape is actually scary.
http://www.majesticearth-minerals.com/default.php
http://www.nutrilite.com/?cm_mmc=GoogleSEM-_-Brand-_-Nutrilite_Brand-_-nutrilite
Don't skimp on the $$$ its cheaper than the disease and Hospital