When it comes to rare Faithless tracks the number one for me is "Intensify". I think it's not just cool to have, but it really is one of the best Faithless tracks ever, though it hard find
The best version I know is 5.25min version I have in .mp3 from one of the Faithless fans. It is fantastic chilloutish track with original Maxi's lyrics. Closest Faithless tracks you could compare this one to is Woozy from the Beach soundtrack and maybe Worthless (original version), but Intensify is even better.
There is only one CD release which contains Intensify, that is VA 3CD mix "The Gallery Modern Masters vol 1" from 1998. Well I found it on eBay and I have it but the version of Intensify it has is a bit different(6.06min) The CD2 is mixed by Sister Bliss and contains mostly electronic dance music [including - Insomnia (Moody mix) and Sister Bliss - Badman (Original Big Mix)]. Intensify doesn't really fit in there so it has mix in and mix out parts which may get you in more dance than chill mood, but it's basically as good as the unknown 5.25min version. It's really a shame that Faithless did not release this track properly on an album or at least on a CD like Rennaisance 3D...

P.P.S. Hello Jordy ! How are you mate ? Have you still got your old mobile number ? Long time no hear about you !

Thank you very much Jordy , gaps I didn`t know I had . I have a few of Sister Bliss`s Badman mixes on vinyl , I`ll try and get them mp3`ed over the next few days to fill your or others gaps as well .