It's the 2Ghz, with 2GB RAM. I haven't used much of the software with any regularity yet. Have reinstalled yes. These are the newest versions downloaded from the respective software's websites.
But is the extra RAM third-party, or is it all Apple RAM?
Firefox shouldn't be crashing regularly, whereas VLC is known to be unstable. It isn't version 1.0 yet.
Firefox can be flakey, although i personally haven't had any significant problems with it.
the latest version of VLC has a bug that causes crashes on some machines. Does it crash as soon as you open a video file?
IIRC you need to open VLC by itself, go to the advanced video preferences, and change the playback module from openGL to something else ... I don't remember exactly, but google should help pin it down.
I've used VLC and Firefox for several years and on at least 5 Macs. Yes, they crash often, but they are after all Third Party. Are your Tiger applications are crashing regulalry too?