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
Windows 7 Ult. x64 / Ubuntu 13.04 Raring Ringtail / 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 / 500GB Winboot, 2TB Data, 500GB Linuxboot SATAIII / Dualboot system / 18x SATA DVDRW * 2 Opticals / Thermaltake Toughpower 750W / Zalman CNPS9700 LED Cooler