Find something you enjoy. With so much to choose from, there really isn't one way to start collecting. So make it easy and begin with whatever grabs you, whether it's a favorite model, make or even color. 'Collectors are happiest when they collect what they like to collect,' says Ray Adler, associate brand manager for Hot Wheels.

Start cheap. Of the many brands on the market, Hot Wheels has the biggest selection for the smallest price. 'Hot Wheels is a good way to break into die-cast collecting because it is so affordable,' says Karen O'Brien, editor of 'Standard Catalog of Die-Cast Vehicles' (KP Books, $29.95), a leading identification and price guide. Most 1/64 scale die-cast cars run just under $1 each.

When you're ready to branch out, do your homework. As your collection grows, so does its value. Now's a good time to consult a price guide for vehicle listings and prices. Besides the 'Standard Catalog,' try HotWheelsCollectors.com and Diecast Zone (www.diecast.org) for secondary-market values and ways to buy, sell or trade.

Network with collectors. Most of the fun behind die-cast collecting is finding a kindred spirit. Besides, fellow enthusiasts might have the car you're looking for or vice-versa. Chat with collectors anytime you spot them in the toy aisle. Even better, join a club such as South Texas Diecast Collectors (www.southtexasdiecast.com).

Seek the rare and unusual. Want to really rev up your collection? Then look for wheels off the beaten path. The pros at Hot Wheels recommend looking for play sets and special gift sets, since these particular vehicles are not sold separately. Giveaways and cereal-box promotions also have rare vehicles. Keep your eyes open for alternate colors or variant models.

Think before you buy. When purchasing die-cast pieces on the secondary market (i.e. conventions or online), always consult a price guide you trust before you buy. Then consult your pocketbook. Never spend more than what's comfortable. Remember you can always trade up. A friendly swap should save you some cash every time.

Sell in small groups. Rob Graves, founder of South Texas Diecast Collectors, recommends that if you sell your collection, do so in small groups, not as one big lot. You'll make more money in the long run.