Just 5 exercises

I'd suggest compound exercises rather than trying to target muscle groups individually.
A lot of advice I've seen suggests 6 main moves, especially to start:

• squat
• chest press
• barbell row
• overhead press
• chin-ups (there are half-way versions out there if you can't do a chin-up yet)
• deadlift

The big compound moves in there (especially squats and deadlifts) will also work out your core, but if you wanted something specific adding a plank wouldn't hurt.
I wouldn't do all those exercises on the same day, but would do the first three, then a days rest, then the next three, then a days rest, then the first three, and so on.

Bang for your buck wise, if you are serious about getting stronger and fitter, get the bench, and a decent set of free weights, followed by a power cage or squat stands (depending on how much room you have).

Stronglifts is a good programme, as is the very similar Starting Strength. The book Starting Strength (by Mark Rippetoe) is worth buying just for its description of how to do the exercises.

PettyDanvers wrote: »

Interesting, is there such a thing as quick change weights. I have started moving up in weights and it is a real hassle changing the weights between exercises. I have those weights with the corkscrew nuts on the ends.

Yep, although I've never tried them so I can't say how easy they are to use, and they do look quite expensive. Have a google for "dial" weights.
Maybe spring clips would work for you?

Gloomendoom wrote: »

The spring clips only seem to work well on plain unthreaded bars.

Doh, of course! I made an implicit assumption that the bars would be replaced not just the clips. Thanks.