Halogen Headlamp bulbs question - xenon / blue lights?

[23109VC]

I have been looking into litronics - but honeslty am not ready to drop $1000-1500 for a set of these things.

I have thought about just getting replacement bulbs for my headlamps that would be a super white, or hyper white - or whatever you call it. I am not looking for "ricer" lights - but something that is not so "yellow".

I have read threads here saying I should NOT get anyhthing over 55W as it will burn my headlight housings - but I wondered if there is a "recommended" way to upgrade my lights so that it at least looks better - and do it for FAR cheaper than doing litronics?

also - do we have TWO H7 bulbs or THREE?? I have a low / high / and a fog. all in the headlight - so I assume that is three separate bulbs? I also have a little 2825 parking light in there.

i'd like to make them all a brigher / bluish white - but only if I can do it for a reasonable price and not have it look crappy/tacky and not hurt the car.

i've heard of HID conversion kits - but honeslty odn't know what that is. i'd prefer to just change out bulbs as I woudl think I could do all these bulbs for not much money.... any suggestions - thanks!!