Unfortunately, no. Weapon enhancements add to the weapon's effective 'total' on top of its actual bonus for pricing.<br/><br/>a +2 weapon is 8,000.<br/>Adding Keen (a +1 boost) makes it an effective total of +3, which is, by the chart (http://www.d20srd.org/srd/magicItems/magicWeapons.htm), 18,000 plus the item cost, so 18,315.<br/><br/>Personally, I'd advise a +1 Warning Scimitar, and use your Factotum's spell-like ability class feature to cast Keen Edge on your sword for fights. Warning is a +1 effective from Magic Item Compendium, so the sword would cost 8,315 total, and it adds a +5 untyped bonus to your Initiative.