Any ideas about Lei-Fei?

I'm new to VF4 as of buying the ps2 version and I had a few questions about Lei Fei (my chosen main).
First, any ideas on good combos that I should know about? (preferably combos that have a staggered rhythm, ie: confusing to the opponent who may be watching it). Ive been relying mostly on my b+k,p followed by a rapid punching air juggle and a pppkpk combo. but i figure that once others get the rhythm of these down, ill need something to fall back on.
Second, other than his autoreversal (mid/hi p) stance, what are some ways to use lei's counters/reversals effectively?
Third, are there any ways that I can more effectively use low kick attacks with him? Ive found that I can follow up some combos with sweeps but that after the combo i have a major frame delay into the sweep. any thoughts?
thx for any info.

 

Ken wrote a very nice Lei-fei guide.
go to this link:
http://virtuafighter.com/view.php?section=vf4&chara=lei&file=ken_lei_introduction.html