TIMING: Check it first. It's the most non-invasive of the tests mentioned. If the timing checks out, you just verified that you have "a" spark to the #1 plug. What about the others? So just move that inductive pick-up to the next cylinder to see if a spark is there. This does not tell you if the spark is hot enough though. At the same time, take off the oil cap to see if the cams are moving. Just a quick visual to know the timing belt didn't snap and that the cam is turning the distibutor.

SPARK: To check for a hot spark, I'd go with a Thexton 404. If the coil was weak, it might be able to jump the standard spark gap in free air, but put some compressed air/fuel between the gap and it becomes a little harder. So this guy allows you to adjust the gap to your liking, while keeping things safe and hands-free. And using a multimeter to measure the coils primary resistance (or secondary) isn't exactly accurate, nor does it show the whole picture like a scope and inductive amp probe would....but it's better than nothing. If a couple windings in the secondary became shorted internally, your meter would still measure a lot of resistance leaving you thinking it's in spec but a scope would show something different.

COMPRESSION: MAKE SURE TO UNPLUG THE DISTRIBUTOR! Yes, it was stated. I'm just restating it, because it's important. Typically people remove their plug wires, set them aside and then remove the plugs. The problem is, you've got no load for the coil if you start cranking the engine over. And if the distributor is plugged in and it's got the coil charged, when it tries to make a spark and release that voltage, it's going to go somewhere. How often do you see threads "I just did a compression test and now my car won't start back up."? It's not an instant killer of the coil, but for older coils that have some miles on them, it's easier prey. Also make sure to hold the throttle WIDE OPEN. You'll get lower numbers without doing that.

FUEL: As stated - get a fuel pressure gauge. It'll tell a majority of the story for sure. You can go a step further and get a set of noid lights to verify that the injectors are actually being triggered though.

Important Notes: Don't expletive around with 3rd party ignition parts. Just stick to OEM. As juevi said, others may work, but they've also been the continued cause of a persons problem...or the source of a new problem. Coils, ICM's, whole distributors - I'd def shy away from AutoZone and the like.

To round out the tools, add a meter...and a Helms.