I would swap out your Starships and Sheridans for the Leopard A1 line. They're cheap and have 5 variants so you have access to a very large amount of light tanks to screen your heavies.
I would get rid of the Bradleys entirely in your infantry tree, they just cost to much and you are going to use infantry you generally want tons of them. I use the very cheap M113 (at the lowest tech costs only 5 supply) so I can mass infantry for pushes through forests. Another very good vehicle is the TPz Fuchs, which has an OK armament but is insanely fast, 105mph, compared to the m113s paltry 40 mph or the bradley's 65mph. A couple of Pgrens of jagers in fuchs at the start of the game can rush very quickly and take up strong forward positions.
Lastly I would swap out your M125A1 mortar for the AML 60, which gives you a mortar and access to the fantastic AML 90 Lynx.
btw, the #1 ladder player "tigga" usually has a livestream up and running here: http://www.livestream.com/tgapples
I've been learning quite a bit from him.