The cheap Harbour Freight clicker ones are fine in the small 1/4" inch-lb sizes. They'll easily last you 5-10 years which is all you need.

For the cassette-lockirng and crankarm-bolts, I'd go with the Sears beam-style. There a phenomenon of "creep" in the higher-torque ranges that fool clicker torque-wrenches. What happens is that thread-friction increases more and more as you increase torque and this leads to resistance against the torque-wrench. The clicker type goes off and you think you have the proper torque. But with a beam-type wrench, you'll notice as you reach proper-torque, it drops. You have to continue spinning the wrench an additional 20-45 degrees as the torque-indicator stays on your desired torque. Only after that additional 20-45 degrees has been turned does the indicator stay put and start to increase. On high-torque applications like head-studs, I've found that sometimes you have to turn an additional 90-120 degrees after the initial torque has been reached until it holds.

You want to assume that all torque-specs given are for oiled threads, unless "dry" is specified (rarely).