The extreme heat generated by my 4yr old latitude is great for heating the office in winter...not so much in summer. Solid laptop otherwise, no complaints &runs

The extreme heat generated by my 4yr old latitude is great for heating the office in winter...not so much in summer. Solid laptop otherwise, no complaints &runs Linux fine except for the usual sleep problems. Looking to replace it with a 17" looks like the Precision range is the way to go... hopefully the business lines have kept up standards. Any other 17" laptops that are recommended? Not sure how anyone codes on a 13" (without an external screen)