Reproduction is expensive if I recall and may not be wise to lower.
I like Maintenance, you seem to get more for your Buck
I usually Roll Back Physical Strength and Cunning. {EDIT: A little}
I personally like 10% plus to politics of there are a lot of friendly players.
Star Liners are very helpful in building up a Colony.
[ April 10, 2003, 16:08: Message edited by: JLS ]