get the tosh P50 i7 15" notebook win 8.1 12GB with hard drive. costs around $900 new if you shop around. it uses the juicy Haswell chip and is very fast so it runs on batt for only 1 hr.
for work i run 100 tabs on firefox compiled by torvpn on their vpn internet to several dozens of oracle/solaris unix superservers on every continent. i have several putty and cygwin windows up to non-secure Linux servers.
at home i run 70 tabs total on chrome, ff, opera, and ie.
i don't use an SSD, it doesn't help since i just use win8.1 as a display head.