If you have a 2 for 1 on Mondays card then I would recommend The Orange Tree on a Monday evening. Their 8oz tenderloin is $295 including saute potatoes and veg. With 3 of you you could actually get a fourth steak at no extra charge if you're hungry, or get 4 * 6oz for a bit less.
I was impressed with the quality of the tenderloin when I went there last week, and two starters, two steaks and a decent bottle of wine (the Malbec) came to a few dollars over $1000 including service. Without the wine it would have been under $600, and without the starters it would have been $295 in total!