First, that is way too overpriced for T61p. Brand new Sandy Bridge T420 can be found at $750+.
In case you are still interested, there are T61 boards with/without CPU's running for $100-$150 on feebay now. I think I can finally upgrade my [wife's now] T60 to a proper T61. From there I can begin the 8GB RAM, SATA-II, etc. I don't mind the Intel. I have a broken T61 with NVS 140M sitting here that only works on external display.
15" QXGA is by far the best monitor I have used. Too bad my wife just keeps zooming in text. I like the PPI ratio very much. Only issue I might see (not issue to me), is that display is slightly dimmer for what you may expect. Great nevertheless. My X220 IPS can't even compare.
Also, here are some part numbers in case you were interested (Penryn ready means it comes with Penryn by default. You can install Penryn in the other one, but I think something like the temp sensor doesn't work):
System service parts - ThinkPad T61 and T61p (14.1-inch)
System board assembly, Intel Crestline GM with AMT
42W7872 (Penryn ready)
System board assembly, nVIDIA NB8M-GS with AMT (WARNING: Faulty boards that stop working. AVOID!)
42W7873 (Penryn ready)
System board assembly, nVIDIA NB8P-GL with AMT
42W7874 (Penryn ready)
15 inch LCD service parts - ThinkPad T60, T60p (1951, 1952, 1953, 1954, 1955, 1956, 2007, 2008, 2009, 2613, 2623, 2637)
Inverter card (15in) SXGA+/UXGA 42T0079
15-in QXGA IPS TFT panel parts - ThinkPad R50p
Inverter card, SXGA+ and UXGA 91P7339
QXGA screens by IDTECH
IAQX10S, 92P6673, 92P6684