Alessi is absolutely top-notch. Long wait though.
Check out the ankle holsters made by Ken Null in Georgia. They're not *quite* as nice as Lou Alessi's, but they are infinitely better than anything you'll get off the shelf -- and you'll get it in under two weeks.
I have carried a lightweight J-frame in one for about 6 months and have no complaints. In fact I'm ordering one for a Kahr PM40 in the morning. Ken does good work, and they are well worth the money.
Even if you decide to eventually upgrade to the Alessi, the Null holster will make a dependable spare.