Yes and no to that really. If you try to wield weapons larger than you you take penalties but smaller you are usually fine. For example a small sized longsword would be a shortsword for a medium creature. So yes, a large creature can technically one hand a greatsword as for them it is considered a longsword. Sadly larger weapons do cost more. They cost double the listed price. So if you wanted a large sized greatsword that would cost 100 gold. A large sized longsword would be 30 gold. As an additional reminder you could always just stick with having a large sized longsword and wield it in two hands to get the 1-1/2 str damage like you would from a pure two handed weapon. Funny enough doing so costs LESS than buying a medium sized greatsword and would give you the same damage. Ecomomics in these games is funny sometimes. Hope I was helpful in clarifying some stuffs<img alt=":D" src="./images/smilies/icon_mrgreen.gif" title="Very Happy"/><br/><br/>Edit: Looks like I beat to the punch a bit there... slow typing is my bane!