TKO Question

I am considering upgrading my 96' GT t-45 (busted) to a new Tremec TKO. The car is an everyday driver and weekend strip car. Has anyone done this swap and how is it for an everyday driver? The biggest issue for me is to get a stronger trans than the t-45 and the TKO does that but is also lighter on the wallet. Also, does anyone know a good site to pick one up at?
 
I was just reading on the ddp website from above and noticed this.

"For 2004, Tremec is producing a new TKO line with 4615 steel gears (wide and close ratio), cast iron 3 pad shift forks, dual speedo pickups (mechanical and electrical) and high performance shifters. Tremec claims that prototypes have been successfully drag tested at 600 lb-ft engine torque. Existing 3550/TKO units will be phased out of production as the new units come on line (approx. 3/01/04)."

Just some FYI