You will also find a big repository of freeware at avsim.com, now that they are up and running again. AVSIM and SIMVIATION have the biggest collections of military freeware and payware.
There's a very good Grumman F-14 rev2 on AVSIM by Steve Hinson, Ivan Kostic, & Ardie Tingleman
W7 Ult. x64 / Ubuntu 11.04 Natty Narwhal / Intel Core2 Duo 6850 3GHZ CPU / MSI X-38 Diamond mobo / Asus ATI EAH5770 CUcore 1GB PCIe video / 6GB DDR3 1333MHZ / Onboard Realtek 7.1 Surround / 400GB * 2 SATAII RAID0, 1TB SATAII Storage, 500GB SATAII Linux / 18x SATA DVDRW * 2 Opticals / Thermaltake Toughpower 750W / Zalman CNPS9700 LED Cooler
Apple PowerMac Quicksilver 2002 / OSX Leopard 10.5.8 / Dual 1.8GHZ CPU / 160GB + 80GB HDD's / Superdrive / 1.5GB RAM