Well here's a good losing weight routine. It's not what I normally suggest, but it's a great way to start out, and it will meet your goals nicely. At 290, you'll add some muscle even.
NOTE: This is almost exactly opposite the advice I give for gaining muscle, so keep that in mind.
Now this is a growth hormone stimulating workout. Don't be fooled by the name, growth hormone is an excellent fat mobilizer, which is obviously what you want. Now a high heart rate, and lactic acid
stimulate growth hormone release. You can read that as, "this workout will leave you winded and very uncomfortable". If you get dizzy, want to hurl, etc. you are doing it right. Now the little cardio at the beginning should help alot, and the order i've choosen for the exercises, but it still won't be fun.
Go buy a Polar
heart rate monitor. They make cheap and super nice, I think I have an A50 which is somewhere in the middle.
Go 3 times a week. This is a full body workout.
5 minutes of cardio. This will change your bodies blood flow from mostly organs to mostly muscle tissue.
DB Bench Presses 2 sets of 15-20 reps
Cable rows 2 sets pf 15-20 reps.
Leg Press 2 sets of 15-20 reps.
Deadlifts 2 sets of 15-20 reps.
These are 15-20 reps to failure. If you make it over 20 then just add more weight next set. Don't stop at 20 if you can do more.
Be sure and do a nice 8 rep warmup set at 70% of your working set. I have no idea what weights to start at, you are just going to have to try them to figure it out.
Don't eat for 3 hrs before hand.
For extra credit you could take 2g's of glutamine, and a gram of Arginine in water before your workout. These help make growth hormone.
You could have a nice plain protein shake afterwards. I'd go low carb myself. Don't skip it.
NOTE: Growth hormone just plain makes you starving. This workout, and some of those amino's do that to me. Behave.
To start you could just do 1 set of each with the warmup. No sense over doing it starting out.
If you do exactly what I have listed here, I'd bet you could drop 20 lbs in 6-8 weeks. Granted, you'd have to watch your diet. 3,000-3,500 cals would be a great start. Keeping track is key.
Fudo