remember the good old days when you could get 512mb for around $50. we all knew it wouldn't last, but now that same 512mb is going for anywhere between $149 and $190!?!?!?! WTF? just a couple months ago it seemed like the highest price i could find was $129 and most places were selling for just $99 or $89. the only real reason i'm peeved about it is because my parents are about to buy an emac and i wanted to get them an extra 512mb to add to the stock 256mb. anyone know a good source for reliable and properly priced ram?