I have enough RAM and CPU power to run HL2 but my video card sux bigtime, its an s3 graphics card with 32mbs.  I have a labtop, and I need to know if this can be upgraded.  Its a compaq presario 700 if that helps, its atleast 3-5 years old.  I know only certain models can be upgraded, and only to a certain degree due to the labtop's limited power.  Would it be possible to upgrade this to an R600, and maybe upgrade the CPU as well?.
				
			 
					
				 
						 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		