Dell has Dell Vostro 15 5581 Laptop (i5-8265U 8GB 1TB 15.6" FHD Win10Pro) for $579 with code "DBPREZ579LT" or Win10Home version (choose Win Home to customize) for $537. Shipping is free.
Dell Alienware 34" Ultrawide G-Sync AW3418DW for $799.99 + tax with $75 Dell Promotion GC Link[dell.com]
You can also get 10% cashback if you have the Amex Dell promotion added.