If you're looking for a new Ultrabook with a touch screen, you could do worse than the ASUS VivoBook S400CA. It's relatively light and compact, and while we would have preferred a resolution higher than 1366x768, ASUS isn't pricing this as a high-end model. It also lasts a pretty long time on a single battery charge.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips