Need some help in deciding what external drive I should get. I currently have a 500 GB SATA drive in an external USB case and a 250 GB Western Digital passport. I have lots of music, pictures and video files and am looking to put them all in a central storage location where I can access all of them thru my network but still keep it portable.

Here are some of the options I am looking at, I'm just not sure which to chose.

Seagate Freeagent - Enough space, great price but read it has a power issue by many buyers.

Western Digital My Book - Also lot's of space plus extra connections, price is not bad would like more space but will cost a lot more.

Maxtor OneTouch - Lot's of space and a great price, would like more space but cant find anything bigger at the moment. Don't know much about Maxtor external drives so please any personal reviews would be great.

Keep in mind, the links are not necessarily where I will purchase these products. I also wonder if it would be better and cheaper if I simply got an internal drive to match the 500 GB I currently have (maybe a 1TB) and a new external case to accommodate both drives.

Any information will be greatly appreciated.