Roaming charges can burn a huge hole in the wallet, at times without you realizing it. While the three telcos in Singapore do provide special roaming rates in certain countries, here's our take on Matrix, which provides post-paid SIM cards and accompanying price plans for frequent travelers.

ASUS' latest ROG graphics card, the Matrix GTX580 Platinum comes with some extreme tweaking features that appear to take a leaf out of ROG motherboards. Along with a new, bundled tweaking utility, this Matrix promises to inject some excitement into GPU overclocking.