I've been getting really into computer security lately, so the pseudo-anonymity of Bitcoins is spectacular; however, I have read that your anonymity is only really applicable as long as all of the Bitcoin addresses associated with your wallet are not compromised. The wallet, then, is only as strong as it's weakest link.
I would like to be able to add an address to forums such as this, but not compromise the other addresses in that wallet.
So, my question is that of the options for multiple wallets. Can you run wallets on a single computer account side by side? Should I be looking into eWallet services?
Thank you for the guidance!