Thanks AfxTwn, the idea of using the USB drive is very tempting. I have a four year old daughter and nephew who have a habit of throwing game discs around. On my last wii, it was as if someone had sandpapered the Wii Sports disc

. Plus i take it I would not have to keep getting up and changing discs, which I tend to do alot as my daughter gets bored easily!!
Sounds like it would be worth looking into this. I've ordered the SD card so fingers crossed all goes well.