Angelina, my x86 laptop is dieing. It's her HD: irq timeouts, DMA expiration, etc.

So, as a future widower, I'm looking for a brand new laptop. Any suggestions?

I looking for something with long time operation battery, nice monitor resolution, fast, 512M Ram and up to 40G of HD. Serial device would be great. Ethernet and modem are needed, wireless is ok...