two external monitors
According to your specs your laptop has an Intel 3100 and according to Intel's specs it supports 2 displays:
Intel Graphics Media Accelerator X3100 supports dual independent displays using an integrated 3D graphics engine with eight graphics cores.
So I would say yes. Also on the Dell page it lists that your laptop has an HDMI and VGA output, so you should be able to connect one monitor to the HDMI and one to the VGA output. Since the X3100 supports 2 displays, you laptop's display won't be on when using two monitors.