As you're aware I've got a new PC with an SSD drive (Patriot Inferno 60GB, ~$140). From what I read the Vortex OCZ3 is insanely fast, but also really expensive. I came from a laptop with a 5400rpm hard drive, so it was a huge upgrade for me. On install it was ridiculous - clicking on Internet Explorer opened it up almost instantly. It took about .2 seconds. It's slowed down a bit with all the junk I've already installed on it, and I'm using Firefox which is a bit slower, but even that loads up in under a second. Internet is faster too, just loading simple web pages.
Boot up takes around 20-25 seconds from when I press the 'on' button to when everything is loaded, there's no hourglass. This includes typing in my password. Coming awake from sleep mode is instant.
I've got all my games and software installed on a separate drive (Momentus XT), so my load times for games and that aren't THAT fast. But for the select few programs I've got installed on the SSD it's pretty much instant. To be totally honest, it takes a little while to get used to. I, and I'm sure most people, will click on something to load up, and then go do something else on the computer. Now, you click on something to load up, and go to do something else and the program loads and it's window gets in the way and you click on the wrong thing.
TL;DR: Yes.