I'm in the same boat as you man! The pre-facelift headlights are "outdated" and would look good with some updated headlights. How good are you at taking headlights apart/retrofitting?
These headlights have to be baked open and taken apart, but all the OEM HID internals will swap right in place, quite the facelifted look too! It says they are for halogen but like I said if you bake them open you can put your OEM projectors in there, self leveling motors etc.
Check these out, somethings up with the listing though because the normal price is like $219:
2001 2003 BMW E53 x5 Halo Black Projector Headlights Lamp Head Lights Pair Set | eBay
For tail lights, most of us have updated to the LED units:
00 06 BMW E53 x5 LED Red Clear Tail Lights Lamps Rear Brake Pair Taillights Set | eBay
Hope that helps man!