I dont think it really matters how much processor speed and ram you have... I have and AMD 64 X2 4600+ with 2gigs or ram as well.. but it wont change the software configurations. As far as I know you can only trade on of each software. They are all the same but different names. For example you can download MetaTrader4, InterbankFX, StrategyBuilderFX, etc. I believe you can install InterbankFX under different names but that means you'll need to open 30 different windows... I have no idea what effect that has on your computer and/or internet connection but thats your best bet..
Download InterbankFX or MetaTrader4 and install it under different names