That I think sums up perfectly the sort of guy Simon was. Always really happy to see you. Always really interested in what you'd been up to. One of the most genuinely nice and selfless people I've ever met. A terrible loss.
thepiratebay.org and mininova are not bad (so I've heard). Searching for axxo's films helps to avoid fakes, apparently.
Edit: you'll need a torrent client like utorrent but if you've previously used torrentspy you should have one already.