I've recently finished a full cleanup of my portfolio, which included re-working my existing theme to be even leaner and meaner. In the process I deleted a lot of old work entries, scrapped my blog and photo gallery (branched off an created a separate personal site for those), and updated all existing portfolio entries to feature full size images instead of small screenshots in an image slider.
Please take a look here:
The portfolio theme itself is actually for sale as well if you'd like to use it as a base or as is. (Just check the themes area).
Looking forward to hearing your thoughts!