Depo's here, def broke your $400 'budget', but have worked well.
Did experience the impossible-to-repeat, int lights, four-way-flasher battery kill when turning on HID fogs..
If I hadn't been in such a danmed-stupid-hurry, I most-def would have set things up with mrbmwx5, the initial headaches alone would have been avoided (mine came with one dead AE, diagnosing was uhmm, a PITA). My Best advice, save up the extra moolah and get with him, set and forget forever is worth a Whole lot more in peace-of-mind.

good luck with your budget, I've not seen anything in that range worth owning, X'ers get cranky when their electronics are not replaced with perfection, and my 'spensive ones still had an issue (might wanna price out BMW OE replacements to see if your number is ??)

__________________
carpe` cevesi
knf

01 topaz e53 3i 5m 120k mi =
$9.7K + $2.4K when seller says "needs nothing" (131K)

Drew Cary: I love driving stewpid in hella thunderstorms.. I roll stop-signs.. get pulled over, the high-school cop says, "Do you know why I pulled you over?"
I say, "Sure.. do you know why I did it?"

2012 Election: Congress has determined that government beatings of all taxpayers must continue until morale has improved

Gone: '67 Galaxie LTD 2D aqua, 72 Pinto, 76 Elite, e12 track.. long road