For HDMI/DVI you can get a converting dongle, but the 8GB RAM is definitely not going to be possible; the '945 is a 32-bit chipset.

That said, I have an X60 and it's a great machine to use, if only a bit underpowered these days.

Also, I don't think binary-blob-free versions of Coreboot on the X60 like that one can run recent versions of Linux as-is; there's some issue with the graphics drivers according to the Coreboot wiki[1]

[1] http://www.coreboot.org/Board:lenovo/x60#Problems_in_native_...

My T400 gets DVI with its docking station, wouldn't the X60 have the same option?