I've been using iClipboard for a couple weeks now. It is about as close a replacement to iClip as I've found. I don't really like how it uses a System Preference Pane to adjust preferences but I can live with it. It's defiantly fast and doesn't seem to tax any system resources. At this point it comes down to will I be willing to spring the 25 bucks for the full version when the trial runs out. Given my affinity for multi-clipboarding I probably will have to but it really seems like it's worth around $15 given that it's really a 1 trick pony. Granted a 1 trick pony that really meets my needs.