You must have a really stuffty computer if Chrome crashes and iTunes used up 75% CPU.
Core 2 Duo E7400 (2.8 GHz Op. Freq, 1066 MHz FSB, 3 MB L2 Cache, Wolfdale Core)
4 GB DDR2-800 MHz Corsair RAM (4x1 GB)
nVidia GeForce GTS 250 (512 MB VRAM, 770 MHz Core clock, 602 MHz Shader clock, 1123 MHz RAM clock)
1.5 TB Seagate Barracuda 7200.4 RPM HDD, alongside a 74 GB Western Digital 7200 RPM HDD for OS
Sure, not the best, but doesn't suck. Apparently though, it struggles to run iTunes/Chrome, and ONLY those two programs for some reason. I guess my computer just doesn't take crapware very well.