so from
here it already tells you the radeon 4200 has 128mb, and on hp's site that you found it says
up to 1918mb. This is exactly what I was talking about. The memory is not dedicated, meaning it's shared from you system ram and you are free to allocate up to 1918mb from the 4gbs of system ram or whatever it comes in.
don't get too hung up on integrated or not. most ppl when they say integrated they mean the intel crap. GMA4500HD or watever. they're all integrated. my definition would be if it has dedicated ram.
Even then, you should google up some mobile vga charts and see where that 4200 stands.
have you tried pricing out an inspiron on dell's website? they start at way lower prices than the hp you quoted, and might be cheaper after you add on everything i.e. ati 4330. how much better is the 4330 compared to a 4200?
not by much
NCIX also has one that is the same price as the hp one you quoted:
Gateway P-7803H-CA Intel C2D P7350 4GB 500GB 17IN WXGA+ GTS 9800 1GB Vista Premium 64BIT Notebook
only 5 though, so you can try your luck at their one day sale.