If you are in the market to buy hand tools, I have some general advice that will both save you money and get you the best tools possible.  I have experience in auto and small engine repair, and have recently begun selling quality hand tools on eBay.  This guide is not all-inclusive, rather, serves to offer a sampling of the opinions and qualities of the tools that exist.  I am more than happy to answer any questions at any time.

First and foremost, Snap-On, Mac, Matco, Cornwell and S-K Tools are widely regarded as the best.  Snap-On, the "king" of hand tools, makes the best line of products available, but you'll normally pay for that quality.  Mac, Matco and Cornwell are all slightly less expensive than Snap-On (generally), and some good bargains are to be found on these tools when used.  S-K Tools are a great compromise in affordability and quality.  Often, these tools are found for 50-60% less than comparative Snap-On products.  If you don't plan on using these tools heavily, I really can't find fault with S-K at all.

Secondly, if you are only an occasional or hobby user, Craftsman tools (many currently made by Danaher Corp...who makes Matco Tools)are also good.  Their warranty is hard to beat (just take it back to any Sears store), but some of their hand tools lack the durability to stand up to prolonged daily use.  Likewise, they are also very inexpensive and well-respected.  While other used tools are occasionally found (i.e. Chinese/Taiwanese), the quality of these tools varies widely, and can often be bought so cheaply new that buying used just doesn't make sense.

Third, some product-specific clues:

SCREWDRIVERS---Snap-On screwdrivers are THE BEST...PERIOD.  Most feature a magnetic tip and shaft that allows you to slip a wrench over it to get INCREDIBLE turning power and bust even the most rusted fasteners.  Craftsman screwdrivers are normally quite flimsy, and I have busted several tips and been unable to budge fasteners that Snap-On screwdrivers take off effortlessly.  Matco and Mac screwdrivers are also great.  If you are going to be using these for extended periods of time, look for newer screwdrivers with ergonomically designed handles for maximum comfort.

WRENCHES---Snap-On wrenches are again hard to beat, and they make a wrench for just about anything.  I also like Mac and S-K wrenches very well.  Craftsman wrenches are also pretty durable, and, though not as pretty or fancy, can get most DIY jobs done well enough.

RATCHETS---Here I am a little less "brand-specific."  I have several Snap-On ratchets that I love.  Craftsman's "cheap" ratchets aren't very good or durable, but their higher quality polished ratchets are a good addition to a set, especially as a back-up.  I have only one Mac ratchet, but I ADORE IT.  These are really a matter of personal choice.  I like to find a ratchet that fits me well, because I tend to use it often.

SOCKETS---Snap-On and S-K sockets are both excellent in quality and construction.  Mac sockets are also great, especially for their impact sets.  Craftsman sockets are OK, but I have busted several as well.  As a word of caution, beware of small-sized 12-point sockets, as they have a general tendency to round off over time.  I like 6-point sockets better, again, a matter of preference.

Please look for my auctions under user "trent515" and email with any questions.  I am always happy to offer my opinion and suggestions.