Hi, like a lot of people probably are, I find myself running out of hard drive space. i have an iMac 20" core Duo with the stock 250GB hard drive and at the moneny have 60 GB free and can sometimes get as low as 10GB and i dont like it when its that low. Most of the space is taken up by iTunes (76GB between music and podcasts and video) garageband and all the jam packs take up a good 20ish GB then there is my apps, TV episodes recorded with my set top DVD recorder and backed up using handbrake, 6ish Gigs of photos, a few games (quake 4, doom 3, marathon trilogy inc AlephOne) a couple of HD movies i borrowed off of the HD in my sky box and my apps inc photoshop, M$ office, Appleworks, ilife and the usual rest, and then there is my parallels XP files (arround 25GB) and my Bootcamp partition (25GB), which id like to be bigger so i can put more games on it than halflife 2, and HL2-ep1 and Sim City 4. SO, the question is. Should i look into upgrading the internal HDD (was thinking 500GB) and stick my current internal in an enclosure, at around £90 for the disk and £90 per hour (minimum 1 hour), im not brave enough to do it myself. OR get an external 500GB FW400 drive and boot OSX off of it, leaving the internal for a small osx partition and XP (vista when i get round to it). Will i notice any slowdown or speed up in performance running from an external. Back in the day my eMac 800MHz ran a bit faster from an external, but that was a slow drive. My wife uses GB a lot (live guitar into the line in in the imac) and i do quite a bit of photoshp, and some lite-ish video work, ripping from set top dvd-R, converting for ipod, playing about with iMovie, iDVD and Toast's Video DVD part. Oppinions please. Im in the FAR north of scotland so options are limited for upgrade places that actualy know what a mac is let alone how to upgrade one safely.