Well, BM, I kinda use that strategy all the time

At least in AI games.
What I do is get a large transport, fill the cargo with only necessary space, At least 4 crystaline/organic armor and 4 shiled generators, One EMC, Solar Sail, and one or two point defense for those missle worlds.
And scream Geronimo.
The Solar Sails are a big help as with it's bonus combat speed, it can speed down to the planet fast with taking about two shots from the weapons platforms.
Although this usually succeeds, not all the time; I found out in simulations that Wave motion guns and Graviton Hellbores do a good job of killing my Heavy Armoured transports before they get in.
Also, the transports failed two times after I let the strategic combat let it run into the homeworld

Guess what happened. The second time, I commandered the ship, but didn't see the massive drones coming in and died.
But still effective.
Edit: sorry, can't spell.
Another Edit: Don't be fooled that that kind of transport can survive Homeworlds or Heavy Defended Military worlds: for those worlds, I have sent 4-5 Warship escorts with the transport to take down or capture bases and ships and also to distract the Weapon platforms.
[ 30 April 2002: Message edited by: TerranC ]
[ 30 April 2002: Message edited by: TerranC ]