My computer has been hacked

Hello,

According to Google's technicians my computer has been hacked by Russians! He detected a Zeus Trojan to be the culprit. He then proceeded to recommend that I contact a Microsoft Certified Networking Professional to solve the issue by doing such things like changing my IP or Gateway Default...not sure..but it is the one that the government assigns to each computer...the cost? $450 or $299 or $ 150 with only a 30 day warranty. I chose neither of the options..blah, blah, blah..obviously a selling job on his part. So now I am faced with this information...someone in Russia can get access to financial info etc... So after some research I found no other solution...maybe buy an Apple computer? Please, here in this forum is where I place my trust...what do you experts recommend? At the moment one thing that has obviously happened is that I can no longer access my gmail nor google voice.

Thanks a million.


Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: AMD Athlon(tm) II X4 635 Processor, AMD64 Family 16 Model 5 Stepping 3
Processor Count: 4
RAM: 3839 Mb
Graphics Card: ATI Radeon HD 4200, 256 Mb
Hard Drives: C: Total - 703027 MB, Free - 559608 MB; D: Total - 12273 MB, Free - 1467 MB;
Motherboard: FOXCONN, 2AB1
Antivirus: None