It's interesting that you talk about a PC "at home", but it's actually just a cheap laptop. I only use laptops when travelling; weight and size then are far more important than performance. High-performance laptops, IMO, are for laypeople who can't afford two machines, students and homeless consultants. My PC, on the other hand, is liquid cooled for reduced noise, has SSD, 32GB of RAM, 680 GTX graphics, 2 monitors (limited by desk space), etc., and generally performs far better than anything in a mobile form factor. Windows "experience index" is 7.9 across the board except for CPU/memory at 7.8.
Pretty much all trackpads suck. Apple's big glass trackpads, when running OS X rather than Windows, are the best implementation I've seen, but mostly because the two-finger gesture scrolling is so slick - it's continuous, rather than anything for Windows which is stuck with discrete mouse wheel up / down buttons. (Mouse wheel movements are not continuous.) Apple trackpads are great for reading single long web pages, but when you need lots of fine control, particularly while maintaining a dragging operation, they too suck horribly. They're not a decent alternative to a mouse.