Acer 7720G Upgrade In Nowadays (Wireless N Questions ++)

Hello everyone i have an Acer laptop 7720g ... its a great machine i bought in 2008. I need to upgrade it, thats why i posted in this forum. after checking on google and here i found some compatible hardware to upgrade, and i have some questions, before asking i will post the specs of my laptop:

CPU Type Mobile DualCore Intel Core 2 Duo T8100, 2100 MHz (10.5 x 200)
Bus Type Intel AGTL+
Effective Clock 800 MHz
Memory Bus Type Dual DDR2 SDRAM
Chipset North Bridge Intel Crestline-PM PM965
Supported FSB Speeds FSB533, FSB667, FSB800
Intel Platform Santa Rosa
Maximum Memory Amount 4 GB
BIOS Version V1.43
Video Adapter nVIDIA GeForce 9500M GS (Acer)
Bus Type PCI Express 1.0 x16 @ x16 MXM II
Intel PRO/Wireless 3945ABG Network Connection PCI
Intel PRO/Wireless 3945ABG Network Connection Network adapter - Mini-PCI Express
IDE Controller Intel(R) ICH8M Ultra ATA - 2850
IDE Controller Standard AHCI 1.0 Serial ATA Controller
Storage Controller AO7VKL3Q IDE Controller
Disk Drive WDC WD2500BEVS-22UST0 ATA Device (232 GB, IDE)

NEED TO UPGRADE CPU, GPU, MEMORY, HDD, WIFI ADAPTER! :

CPU:INTEL T9500 C2DUO CPU OR X9000 (but its too hot/expensive)

Intel® Core?2 Duo Processor T9500 (6M Cache, 2.60 GHz, 800 MHz FSB))
Intel® Core?2 Extreme Processor X9000 (6M Cache, 2.80 GHz, 800 MHz FSB))
compatible CPUs with my chipset ...
CPU-Upgrade: Intel PM965 Express chipset processor support

GPU:NVIDIA 9500M GT 1GB GPU

MEMORY: 4GB (2X2) KINGSTON SODIMM DDR2 667MHZ

HDD: A SSD OR A SATA HDD @7200RPM (wonder about the performance of an ssd device with my old sata controller type) ...

WIFI: A WIRELESS N COMPATIBLE CARD

A) I need to ask you for now, if there is an intel compatible N card for laptop, my older Intel® PRO/Wireless 3945ABG MiniPCIe card i suppose it has only one antenna cord installed defact, installing an N one (which needs 3 antennas for example) will be a problem/possible?

Intel® Centrino® Ultimate-N 6300, an Wireless N 450mps compatible card (3 antennas) ...

B) I need to know if Nvidia 2XXM DDR3 card are compatible with my MXM II Bus type. I found this page in the point. if thats true then i will not buy the 9500M GT one, CAN I?:

Acer 5520G 5920G nVidia GT 240M 1GB DDR3 MXM II VGA Card

thanks

 

A) It's definitely possible to install two more antennas, but you would have to disassemble the display and probably take the bottom shell off (but you have to anyways to access the old wifi card). I'm actually waiting for a 6300 in the mail, and my notebook only has two stock antennas, which means I'll have to do some disassembly. Some people think it's hard and some think it's easy to do, but I guess it mostly depends on your notebook's design.

B) I didn't notice what your current GPU is, but the GT 240M are good cards. I had one in my, now sold, Lenovo Y550 and I was able to play Dungeon Seige 3 and just fine on default in game video settings (I think it was mostly medium with some high). I can't quite recall if I tried the Witcher 2 on it, but I think I did with medium settings. BUT the big thing is that your heatsink needs to have surface contact with the GPU and other chips on the card (I forget what they're called, but they're smaller square black chips just around the GPU chip). If they don't all have surface contact, then you could have some major overheating issues.