Sylvania Silverstar headlight bulbs..great or gimmick??? anyone tried em?

[JordanVw at aol.com]

has anyone tried the Sylvania Silverstar headlight bulbs?   they sell for 
$38.00 a pair at wal-mart..   has anyone tried them?  do they really put out more 
light?   says they are supposed to be "brilliant white"..   true or false?    
how about some called "XQ" "Xenon Quartz "cyber White"  by Navigator..   
wal-mart also sells these, but theyre cheaper..  any good?   or just a gimmick?

please let us know if youve tried them..and what you think..

chris