Hi Charliechan,
Damn quick reply. I'm watching LSE, NASDAQ and NYSE. eSignal feed into MetaStock limited to no more than 30 securities. Running some other mainstream apps aside: IE (warrants trading web app), Acrobat, Excel, Outlook and sometimes streaming TV.
Haven't changed anyting over the past 2 years but do notice that as I get my skills up, I want more facilities (Level 2 reading, more TA charts and graphs). So, thinking about either upgrading to state-of-the-art trader workstation (still researching that, not much info about) or just buying new desktop running on extra braodband enabled phone line (cheapest option).