PM 760 (2GHz)
2 x 60gb HDDs Raid #0
2 x 512mb ddr2 533 RAM
Love it, but the Raid#0 config runs hot now it's summer time here in the UK, with the HDDs reaching >51 degC (maximum) in tandem. Am going to reconfigure the OS and take one of the HDDs out after I've finished a load of projects to deal with this. At the moment, I have the front end of the laptop propped up an inch (at an angle) to increase airflow underneath.
I don't play games often, so don't see the lag. I haven't ever played DVDs on it either. However, I do listen to a heck of a lot of music on it (primarily because it's used as the main computer in a music studio!) and I can't say I have ever recalled it lagging/glitching on playback. It does "brrrrrr" for a second or two when you activate/switch the WinAmp visualisations (ie. when switching between different graphics resolutions), but that's being picky as I never use visualisations anyway.
I played an old game, Hard-Truck or something, and a coverdisk demo of a game called Ford Racing 2, and both games lagged when it accessed the HD which messed up the gameplay (the sprite went haywire due to the delay), so I definately feel for those people who are gamers. The graphics were beautiful on FR2.
The screen does flicker when scrolling, often very annoyingly, but I've since tried my mum's 19" Sony TFT and that does the same thing. I can only guess it's an LCD thing, as CRTs don't have this problem. (LCDs have finite delays in the switching circuits of each and every pixel, whereas CRTs work via projection and are effectively analogous in nature [ie. they don't employ a fixed native resolution] and the image is refreshed globally at the same time, as opposed to an individual pixel-by-pixel illumination method like the LCDs).
Bring on OLEDs
, that's all I say.