Depends how much you want to spend. If it were me, I'd go with Craftsman for most of your tools, and buy Mac or Snapon for ones you can't get at Sears. Snap-On is always a good investment, but starting out, funds are tight.
Your sockets and combination wrenches can be had at craftsman. Get stubby wrenches and full length pattern wrenches. Reversible's and rachets aren't much more expensive than plain-jane wrenches, these days. A good set of screwdrivers. A descent 8 oz and 16 oz hammer, a soft face mallet (go for the snap-on dead-blow ball-peen...lifetime hammer and the handle won't fall off). A set of duck bill pliers, slip joint pliers, needle nose pliers, several sizes of vise-grips (needle-nose are handy), and a mid-size channel lock plier. A good quality diagonal cutter. The long handle snap-on dykes are handy. A descent set of safety wire pliers; the robinson 6" reversibles are nice because they are handier in tight spots. Your sockets should be quarter inch, and go for the six point and twelve point. One set of 3/8" twelve point sockets. Ignition wrenches. Hex keys (allen wrenches); get the ball-ended ones because they're more versatile. A net of needle files, and a couple of good single cut and double cut bastard files. A 10X magnifying glass or eye loupe. Metal snips. Get a good quality quarter inch torque wrench
You'll pick up other tools as you need them, and a good practice is to pick up a tool at a time, on an ongoing basis for the rest of your career...keep investing, keep paying them off, don't get stuck in debt. I've seen a number of guys end up stuck in hock after spending far too much on tools and a box. Don't do that.
Get a basic portable box with drawers; don't get sucked into the expense of a snap-on or mac. Craftsman works fine, especially for your starter box.
Ebay can be a good source of tools at a better price than you'll pay off the mac or snapon truck...and the truck still honor the lifetime warranty.