Quote from Bolimomo:
In general it will. It is just not a direct logic. 64-bit will let you use over 4GB of RAM. More memory space means more memory can be allocated for the application. If enough memory is available for your app, the operating system does not need to do any swapping/paging (virtual memory). Without the bottleneck of swapping/page, your app will run faster.
I would say go for 64-bit and higher memory (8GB). I would bet that the performance benefits from this is more than using a SSD over HD.
You can drive 2 monitors initially from the integrated graphics. But when you want to add additional graphics cards, the integrated graphics capability may (or may not) be disabled.
If you really, really want a SSD, you may not need one that is >200 GB. Just plan your storage scheme wisely. Buy a small SSD (maybe 40GB), which can be inexpensive these days, and a HD. Use the SSD for your OS and trading app, but minimize data storage on it. Put all your family photos and vacation videos on the HD. No need to waste SSD space for them.