DIY
I got my 512 from ebay and the type is unique. you can only get 1 type but it's like desktops, if you want to spend more for a higher quality, go for it, but I do not think that laptops will recognize the difference. if you can afford a 150Mhz instead of the std 133, it's your choice, but I think that apple's spec are enough.
if you like looks and don't mind the cost you should go with Lacie, I don't have them but for the look d2 looks cool and i heard that porsche is made of plastic unlike d2's aluminium.
d2 looks like it can open and change the HD, (don't know but i hope it can) and the porsche is a 1 body sealed.
if you don't mind the look and want something cheaper, DIY.
I made mine. I got a case that has F400 and USB2 of ebay and a maxtor 120 ata133 for 75$. and the case for around 40
if anyone has a d2 lor porsche from lacie, can you tell me if you can open it with ease and change the HD, if you have any link of the d2 and the porsche please post it.
thanks