Hi Hedge, I have an Lenovo X201T (2985EZG) with i7 620LM @ 2GHz, 8Gb RAM and a 160GB Intel SSD, it is fast, much faster than my desktop which has a i7 965EX @3GHz, 1TB WD Raid, 12Gb RAM with a GT580 graphics card, most of the speed diffrence is down to the SSD.
The wife also has a Lenovo X201T (3113WNE)with an i5 @ 2.66GHz and is a little quicker at processing stuff due to the higher clock speed but the SSD in mine makes up for that.
We are both more than happy with the Lenovos, mine is 2 years old now and the wife's is 1 month, they both replaced 2 Dell Latitude C610 from 2000 and we used them until they stopped working properly.
I have a X200 UltraBase for mine that I can put in things like an extra HD or a DVD/Bluray writer it also gives me a HD video out on the dispalyport with 5.1 sound that I can plug into the cinema via a displayport to HDMI converter. Altho it was not listed in the spec of the wife's X201 they both have Gobi2000 WWAN cards with 3G and GPS built in and a SIM slot to put in your own sim card (vodafone is the prefered supplier in the UK) I use O2 in UK and Proximus in Belgium when out on the road.
The main thing I use mine for is off road navigation in my car and for reading Kindle books in bed One downside of them is that the grandkids love them and want to use them when they come into the house, the pen-enabled screens are so cool they say, mine is also multitouch meaning you can use your fingers to navigate, type etc. on screen just like on an iphone/ipad.
I got ours through this crowd
http://www.laptopsdirect.co.uk/
also checked here for prices
http://www.pric.co.uk/p8986