I loved Primer but I also really liked The Butterfly Effect. Maybe you saw the the dumbed-down, happy-ending version where many of the sub-plots that actually made the movie, well smart and great, were removed? For example, him finding out that his mother had had two miscarriages before him.. couple that with the ending and you have a waaay better movie than the americ^Z^Z cinematic, "pro-life" version. A list of changes (note that the "Alternate ending" is the major plus): http://www.imdb.com/title/tt0289879/alternateversions

Some may deride Apple for the design of the Mac Pro case, but if you open it, you will immediately notice that they REALLY spent some time designing the layout of the interior parts. Heck even the the old Sawtooth generation G3/G4 towers (circa 1999) had that nifty side-handle design where the motherboard sat on a hinged door.

This is worth a reprise: http://www.lostbrain.com/features/powerstack/index .html