When it rains, it pours

Literally. I'm so exhausted from thinking about finding money where it doesn't exist. It's wearing me down and my mood is reflecting that.
My boy has his Black Belt test next weekend which will cost $225. This was already stressing me out, as I was told that it has to be cash or check. They won't take credit cards. Who doesn't take credit cards anymore???
Then, on Sunday night my boy was watching a movie on the big screen TV in the living room and all of a sudden there was no sound. I tried a few things, but still nothing. It was getting close to their bedtime anyway so I told him to just shut it off and we'd try again later. Hoping that maybe it just needed to cool off. I really was hoping that was the case, knowing the likelihood was slim.
On Wednesday, I was enlightened with the joy that is Susan Boyle. I watched the YouTube clip at work a couple of times, then went home hoping to play it for Shell. And just when I got it started, my computer shut off. Totally and completely shut off. I couldn't even get it to turn back on. Bad sign, huh? And that's when my boy decided to try the TV again, to find that it still is silent. I told him to shut it off again, that I couldn't deal with it right now. TV and Computer? What next?
I brought the computer in to work this morning (in the rain, hence the title), to see if our resident 21 year old computer geek can make some sense of it. If it's shot, we'll be buying our first new computer. Ours was given to us about 7 or 8 years ago and we've dealt with it's age-related quirks for some time, knowing that it's better than having to buy a new one. But I think that it's time has come to an end, finally. Luckily, Shell's work gives the option to purchase a computer with 10% down and the rest is financed to come out of her paychecks for up to 18 months. This obviously makes the purchase easier to swallow, but still not something I wanted to have to do right now.
I'm hoping (again with the hoping) that a cousin of mine can come by and take a look at the TV. He used to do television repair for a living, so maybe he can figure out what's wrong and will make me a deal on fixing it. He's not a close enough relative that he'd do it for free, plus we'd have to pay for any parts but I hope he can make it relatively painless. What are the chances that the computer and the TV can be fixed for little to no money? I know.... but a girl can dream right?