How would this setup handle applications such as Farmville, Cafe World, and other facebook favorites?

This system would be great for Facebook.  (I'm hooked on Farmville). The HP Pavilion Desktop PC looks great in any room and handles all your computing needs, like e-mail and word processing. Accomplish all your multimedia tasks with HP's exclusive MediaSmart software, and easily add or upgrade features and functions. Plus, the HP Pavilion Desktop PC comes with Windows 7, which makes everyday tasks simple. Bundle includes 18.5" monitor, keyboard and mouse.

HP Pavilion Desktop PC:
• AMD Sempron LE-1250 processor
  2.20 GHz, 1600MHz system bus, 512 MB L2 Cache
• 3 GB PC2-6400 DDR2 SDRAM memory
  Enough memory to handle today's most memory-hungry applications
• 320 GB Serial ATA hard drive
  Store your music, videos, photos and documents with plenty of space to spare
• SuperMulti DVD Burner with LightScribe technology
  Play and create CDs and DVDs with this DVD/CD burner drive
• Wired Ethernet
  Connect to a broadband modem with 10/100 Ethernet
• 18.5" diagonal 16:9 widescreen monitor with VGA and DVI-D connectivity; NVIDIA GeForce 6150 SE graphics with 256 MB graphics memory