Don said:
I
Alternative...
Chaos Space Marine Squad from Dawn of War: Chaos Rising. Basic upgrade boosts their stats. The can get a champion who makes them better again. Lastly they can be upgraded to be either amazing ranged soldiers or given chain-axes (a bit like a chainsaw, but in axe form - nasty!) and used as heavy assault troops. The just look awesome as well.
Seconded on this.
These bastards are absolutely OP with the chain axe and plasma pistol upgrade, especially with a Champion attached to them.
I've taken one squad and a Chaos sorcerer on an absolute rampage across the map, started off with 0 zeal, or the Chaos equivalent and landed back at my base with one Chaos Marine dead and enough points to call in Chaos' AoE rape ability.
Those things demolish everything in their path, they're brilliant from the word go, cheaper and more versatile than your average Space Marine counterpart because chain axes make them useful against everything.