If memory serves you are in Wisconsin. Try this guy: http://www.modernarnis-wi.com/ . I have yet to run into a modern arnis instructor who doesn't know his stuff and is good at what he does.

Silat is very hard to find someone who is the real deal and not a LARPer. As with anything, you'll want to validate any potential guest instructor from any system before you bring them in, if you care about quality of instruction and material. Any instructor should readily be able to state what their degrees are in and whom they hold them under. Beware 5-6th degree BB's on up, most often those are retards who have "created" their own system and promoted themselves to grand master/soke/sijo/grand wizard, whatever, or members of an organization that has very questionable promotion standards, such as WTF and ATA TKD. Also beware systems riddled with foolishness and LARPery, such as the Booj (bujinkan ninjers).

Finally, one of these days we're going to have to have the "Why Vuk has drank the koolaid" discussion about t3h d34dly chun.