Ok, while I'm not an entire newbie to wargaming, I'm not a grognard either. I've played some Warmachine and WHFB.

What I became curious about is the idea of playing at the 2mm or 6mm scale... as, to be honest, it seems like it would be a lot cheaper, and possible to field huge armies without breaking the bank.

What I wanted to know is: is there any good game system specifically for these tiny scales for either fantasy land battles (ie, whfb or warmachine style, etc), or space battles?

I appreciate the help!

Fantasy I'm not so sure on - does Future War Commander have a cousin?

Space Battles - Battle Fleet Gothic, Starfire, Dystopian games do one too.

ohhh, yeah. WM similar - Dystopian Wars do a steampunk range.

Technically, Spartan Games makes Firestorm Armada, a space combat game, and Dystopian Wars, a Steampunk game based on the same rules engine. They also do a fantasy naval combat game called Uncharted Seas.

For Fantasy, you might also try Warmaster. Strictly speaking it's 10mm, but it is an army scale combat game based on the WFB universe. The rules are free on the GW website, in the Specialist Games section. (You'll also find the rules for the aforementioned Battlefleet Gothic, or BFG, there.) Kallistra makes the Hordes and Heroes range of 10mm fantasy minis of you can't stomach the GW prices. The Warmaster ruleset is good enough that there are about half a dozen or so games from at least three companies that use the "Warmaster engine", the core mechanics from the game. Future War Commander/Blitzkrieg Commander/Cold War Commander are the most relevent to the discussion, being designed for 6mm to 15mm army scale combat.

Of course, you could just play Epic...

Oh yeah, and 6mm is cheaper to start than 28-35mm, but if you're anything like me, it just means you're armies are bigger!

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SG

Ghost's Paint Blog, where everything goes that isn't something else.

6mm is really the only way to play combined arms ...

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Legion 4 "Cry Havoc, and let slip the Dogs of War !" ... "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf."

For fantasy, you could really use any games that have element basing. Mighty Armies is pretty good for a fast game, Chipco's Fantasy Rules! 3 or TCE, Pride of Lions for very large games, Impetus Fantasy variant.

Warmaster would work as well, and would be a great deal cheaper in 6mm. For example, I usually fit about 15 6mm orcs on a warmaster base (20x40), for 45 per unit. From my own 6mm line, that comes out to about $8 for a full warmaster unit, as opposed to the $15 GW charges for one 10mm scale unit.

for fleet battles, I think Starmada Fleet operations came out recently which is probably pretty good. There is also Sky Full of Ships.