[The following was a post to the 43folders forum, but I realised it ended up more like a blog post than a question, so copied it here, with a few more links...]

I stumbled upon this tip to "attach" files to an iCal event - very useful. But not that useful, I can't drag an drop the file I want to use, so my big clumsy fingers have to go through a number of contortions to do it. Immediately I thought "I bet I could do this with Quicksilver" (I'm new to it and think its great), but it seems I can't. I can find the file and copy the file name to the clipboard, but I can't update/modify the iCal event. Is there something simple I've not turned on?

Also, while I like the neat little two pane window of quicksilver, if I have a complex action (capture file name, prepend file:// to it, add that as this events url, in this instance) I'd like to be able to define this as a new action associated with files (or whatever), so I just call quicksilver once, find the file and type attach (or whatever). Is it possible to define such complex actions (chains of actions) and set them to a known command name? What would be really nice is if quicksilvers adaptive learning could work such complex actions out for me (I'm very lazy), and create new actions on the fly. Maybe now I'm dreaming!

Last but not least, I have an applescript that takes a message from mail.app and makes it an iCal event, I think I can pretty quickly make it save attachments somewhere sensible and attach them to these new events. I guess 90% of the time the files I want to attach are from mail ("The meeting is on Tuesday, the agenda pdf is attached") so maybe I don't need quicksilver to do it in this instance, though I'd really like it to!

[EDIT: after making this post to the forum it spat out a few related links, one being this - sounds perfect! Time to play...]