I'm using the Artifactory plugin for Hudson and happy to say it works quite well. One area of concern is that there seems to be no limit in how many builds Artifactory retains. I know I can manually go in and delete builds, but it would be nice to be able to specify an expiration time or number of builds to retain. It would be even better if the retention time matched the retention time specified in the Hudson project. For us, it makes no sense to keep builds around in Artifactory longer than they'll be available in Hudson.