Choosing new notebook

Hi, Community Brain. It’s time for me to change my old good Dell Latitude D820. I need performant machine and following the results of my findings. It’s really important for me to know your opinion about those choices. Also, if you have additional choices, I’d be happy to hear about it.

	Dell Precision M630	HP 8710W	Lenovo T61p
Processor	Intel® Core 2 Duo T9500 (2.6GHz, 6Mb, L2 cache, 800MHz FSB)	Intel® Core 2 Duo T9500 (2.6GHz, 6Mb, L2 cache, 800MHz FSB)	Intel® Core 2 Duo T9500 (2.6GHz, 6Mb, L2 cache, 800MHz FSB)
Memory	4GB 667MHz DDR2 SDRAM (2x2048)	4GB 667MHz DDR2 SDRAM (2x2048)	4GB 667MHz DDR2 SDRAM (2x2048)
Video Card	NVidia® Quadro® FX 3600M (512MB dedicated)	NVidia® Quadro® FX 3600M (512MB dedicated)	NVidia® Quadro® FX 570M (256MB dedicated)
Hard Drive	200GB SATA (7,200RPM) + fall sensor	200GB SATA (7,200RPM)	200GB SATA (7,200RPM) + disk encryption
Optical device	8X DVD +/- RW	8X DVD +/- RW Blue-ray	8X DVD +/- RW
Modem	56.6k v.92	56.6k v.92	--
Wireless Networking	Intel PROWireless 4965 802.11 a/g/Draft-n	Intel® Wireless LAN 802.11a/b/g/n	Intel Wireless WiFi Link 4965AGN
Bluetooth	Dell Wireless 360	Intel Bluetooth‏	Integrated Bluetooth PAN
Primary battery	9 Cell Li-Ion (80 Whr)	9 Cell Li-Ion w/XPP 3 yr warranty	9 cell Li-Ion Battery
LCD	17” WUXGA (1920x1200) UltraSharp + anti-glare	17” WUXGA+WVA (1920x1200) anti-glare	15.4” WSXGA+  (1920x1200)
Weight	8.5 lbs/3.8 kg	7.4 lbs/3.4 kg	7.3 lbs / 3.3 kg
Dimensions	1.6”(H) x 15.5”(W) x 11.3”(D)	1.3”(H) x 15.4”(W) x 10.8”(D)	1.4”(H) x 14.1”(W) x 10.4”(D)
Cons	I saw Precision series in work – performance is not good enough for such configuration (for comparison, my old Latitude with the same hardware configuration worked much better)	Everyone I asked, tell me, that HP machines are not reliable enough	Keyboard layout is absolutely awful. It impossible to work with Fn and Ctrl swapped. Graphic card is not strong enough It’s 15.4”
Pros	It is very reliable	Very good performance Very lighter Good battery life	Absolutely reliable Great performance Outstanding battery life

 

What to do? What to choose? Please advice!

Thank you