Not a tech deal, but I know a bunch of geeks who ride, including myself.
Motorcycle Superstore is having a helmet sale on selected cruiser, street and dirt helmets.
Considering the last PPC mac was the Power Mac G5, released in 1996. I'd venture to guess most of those machines are in business environments which wouldn't upgrade the OS anyway. I know there are a lot of video production companies out there, who can't afford to muck around with upgrading...
If you're going to trust your life to a $25 stun gun, your life is probably not worth very much.
Getting much further into this subject goes beyond the scope of this forum, if you actually do value your life more than $25+$8.34 s/h, I'd recommend checking out one of the many 2A forums out there.
Ha! I paid $300ish, back in the day for a Dell 20.1", when that deal came out, people here were shitting themselves, myself included. These days, people are almost like, "Gawd, not another monitor deal."
Here's a DVI to HDMI cable for $4.14 from monoprice...