Hey mate, I too have an IS300 which just recently undertook a major 150k service... Lexus told me $1600 for this service plus an extra 300 something for the oil change etc.. Canned that and got my mate who works at supercheap auto and got me all the parts necessary for this service, got it done by a family friend mechanic at ALL DISTRICT at Gladesvile (Sydney) and saved myself a few hundred dollars. As for shocks, TOKICO make probably the best OEM replacements for our cars for the money and you can buy them off eBay delivered from and AUS supplier. The guys name at the workshop is Gary and if you decide to go there, say that Adam Kulary sent you and he may do you a better price.