Dell's Insprion 15 3000 is an entry-level notebook that remains not only highly affordable after a quick upgrade to an SSD, but feels quick and responsive. Take that into account, along with the surprisingly good battery life, and you have a decent system for on-the-go that won't break the bank.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips