Well, backed up my MacBook using Time Machine. Replaced the HDD. Reinstalled OS X, restored Time Machine backup and it’s back to normal now. 🙂
So bigger disk, means more junk. Yep, may stick VMWare on it and dump and XP/Linux virtual computer on the 2nd partition.  This (250gb – well 230gb) is the largest internal drive I’ve ever owned! Not bad for £46.54 (Western Digital Scorpio Blue 250gb 540rpm Sata-II WD25000BEVT). Christ I remember paying £400 for a 20mb Amiga HDD. Just need to get a cheapo caddy and I can use the MacBook 80gb as an external 🙂
(Though not done system updates yet – still impressed how quickly it’s back to normal!)