so um i had a really rad comp like 3 years back... around 2ghz processing power nvidia 8900 1 gb of ram slick net connection (forgot wat video card i was using though) then something went terribly wrong.....some how last year a virus invaded my comp and BAM!!!!!!! my moniter even somehow got affected. my nvidia grafix card selfdestructed and everything came down in a land slide. for an avid gamer like me it was a nightmare. i wanted to upgrade my comp but my parents wouldnt allow it until my icse was over. so here i am now with only 3 major exams left (maths, economics and second language) so im gonna finally remodel my system. but i have a few questions my current processing speed is 1.78 ghz how much would it cost to change it to 4.2 ghz?( im obviously planning for a new cpu so the cost of getting a direct 4.2 is what im looking at) i have no grafic card right now what so ever but i have 2 in mind. ATI HD 4850 ATI HD 4770 ATI HD 4870 and if i can get a reasonable price then a ATI HD 5870 now the problem of course is that the prices of 4850 and 4870 and 5870 is quite high..4770 delivers good enough performance for nearly just 150$. now the thing is which one would you guys suggest and any other alternative is welcome ( price is a factor u cant tell me to now check out 5970 which is ludicrously priced). any other adjustments and modifications u guys suggest for a serious gamer? and also would these modifications cost more than just buying a brand new pc with the same components?