I RMA'd my TPII 550 a few weeks ago for the same thing. Although my computer wouldn't turn back on after it was shut off without flipping the power switch on my PSU, I did notice the leaky caps as well. RMA is all done online and rather easy. You just have to box it up and pay for shipping...
In my case if I have the back 120mm fan speed turned up all the way, the pull of air will stop the PSU fan. If I open my case it will start again. This was with an antec though and it just did not have enough power to move it at the low speeds with the other fan pulling so much air. Does the...