Why did no one recommend JBWeld? I use it any time I need a strong connection, and you can get it everywhere.
Turbocharged 2000 Explorer 5.0 AWD, SCT tuning software, Carputer w/ Athlon XP2600 and 8" Lilliput custom molded into dash, Terk Commander XM, Rand McNally and MapPoint, bluetooth, and 802.11x
JB weld doesn't stick to plastic well. Oh and never buy JB quick weld (the 4 minute stuff). I love JB weld for aluminum and metal adhesion, but JB quick isn't good for anything. It's bendy doesn't bond well and isn't chemical resistant. Quick steel works great for aluminum and steel as well. It just sits up faster then JB weld.
For plastic. Everything I've used doesn't stick. I've however never tried the stuff that's mentioned on this site.