http://www.buyxg.com/This website, or numerous others like it. On this particular one I can get a Desktop PC (which is what you want, forget the laptops) for 750 dollars, that is 40 times better than that Dell Inspiron, and it comes with accessories.
Im buying a 499 dollar PC off this website that will be able to run even BF2 on the highest settings, lets see your 800 dollar Inspiron do that.
I forgot to add this, the Key to building or buying a PC is research, research, research. Use this website to build your own (or find another like it you may find), research each part, use google to find comparisons, find benchmark listings, get to better understand PC equipment, if your planning on buying PC's in the future, it is key that you learn to spend alot of time reading, browsing, and looking up the latest information for every part. It took me 3 weeks to research all the parts for my configuration, and finally decide what I was going to buy.
With the recent announcement of E:TW minimum specs I found out I could chop 200 bucks off the price.
Again, do your research, it'll save you money, and take it from someone who does extensive work with PC's, don't go for Brand Name PC's, even if you find a used PC store somewhere and buy a cheap 120 dollar system from them, you can spend maybe 300 bucks in add-ons and make that PC a charm which will last you some time.
Bran Name companies are scam artists, just like AOL