You can buy HD upgrade/replacement kits for the newer models from sites like iFixit and OWC. In that respect I think they tend to beat comparable PCs; I was rec

You can buy HD upgrade/replacement kits for the newer models from sites like iFixit and OWC. In that respect I think they tend to beat comparable PCs; I was recently looking into this question for an HP laptop I was considering buying and found that it had the drive soldered to the motherboard. I believe the RAM is soldered onto the motherboard for all newer Mac models.