LETS GO TO F1 TOGETHER!!! IM SERIOUS!!! I'm planning to go for the GrandStand ticket, then after that you can go to the astro f1 party (free admission, at C2!)
I even cancelled physics tuition for f1
Yes, Low Yat Plaza is a good place however for Pirated CDs - Well I dont know much bout CDs, but I always go for Pirated DVDs - the best place is Bangsar. The DVDs there are extremely cheap but high quality.
Your question regarding comp shopping is a bit difficult to answer, most likely because every mall or plazas you encounter will have computer shops - therefore you'd need to do a lot of touring to see which has the best price to offer. Last time they had something like a PC fair at the Putra World Trade Centre but I dont think it's still on.. But I guess you can start with Low Yat Plaza
Baggio, my fav shopping place is always KLCC, Starhill and Avenue K (its right across KLCC) - designers at its best!! But I rarely go there seeing that its far, so I always opt for another mall nearer to home - One Utama. It might have less shops in comparison, but at least its not too crowded and still remain a fun place to shop at - FCUK is there in One Utama (new wing), so are other stores like Versace, Armani Exchange etc.
But, really, KLCC, starhill and Avenue K are shopping havens.