As i own a Beamer, I have to say, for luxury, price, style, performance, comfort; everything in the one package, you can't beat an E46 Coupe.
In WA you can pick up a ~2002 E46 325Ci with the sat-nav options, sunroof, leather, under 120,000kms for around the $22-$24K mark.
Of course in the Eastern States they will be a fair bit cheaper.
I suggest you go look/test drive a few. They are a great cruiser, and have a really good compromise on fuel economy and power. (Top speed of my Beamer is 240km/h no bullshit )
As a reference, my year 2000 323Ci is for sale for $19,500 atm (http://www.carsales.com.au/all-cars/private/details.aspx?Cr=0&R=10273093&keywords=&trecs=4&__sid=1190B3595876&__Ns=pCar_RankSort_Int32|1||pCar_PriceSort_Decimal|1||pCar_Make_String|0||pCar_Model_String|0&__Qpb=true&tsrc=allcarhome&__Nne=15&seot=1&__N=1216%201246%201247%201252%201282%204294967079%204294729572%204294967053%20904&silo=1011). The KMs might seem high at 160,000, but I have never had a single problem with it and love it to bits! Sad I have to sell it