I have purchased (new) every X series since day one, my favorite is my X60s 1705-24U
1) Has the best of all X model keyboards. Very solid, simply excellent.
2) Coolest quietest X model of the lot.
3) Here is a list of ports:
One Secure Digital Card slot, supports SD memory cards
One Type I or one Type II, CardBus Plus (34mm ExpressCard via adapter)
IEEE 1394 (FireWire) port (4-pin)
Three USB (version 2.0)
External DB-15 monitor
Infrared (4Mbps)
RJ-11 (modem)
RJ-45 (ethernet)
IEEE 1394 (4-pin)
no serial, parallel, keyboard, or mouse ports
Then if more are needed the X6 ultrabase adds:
Power button (front)
Stereo speakers (1 watt)
Security key lock, security
keyhole, and optional security screw
Serial and parallel ports
Analog DB-15 monitor port
Four USB 2.0 ports
Gigabit ethernet port
Modem port
Microphone in and headphone out
Requires 65 or 90 watt AC adapter
4) Yes it's lighter
5) Yes, after trying a Samsung, and OCz, I finally found the speed I wanted in the Intel X25-M 160GB SSD, while it's a bit pricey if you want speed, this is the drive to use.
I found the SSD here:
http://www.newegg.com/Product/Product.a ... 6820167015
Cheers...