Within a european FP7 project, we currently develop a new UHV low temperature multi-dimensional scanning probe microscope (MDSPM). The two-dimensional force and energy dissipation measurements are performed via micro-fabricated cantilevers with relatively high spring constants (200-2000 N/m) which are simultaneously driven on their flexural and torsional oscillation modes with sub-Å amplitudes. The deflection sensing is achieved by a focussing Fabry-Perot sensor with an up to 100 MHz bandwidth and an unprecedented sensitivity down to 1 fm/√Hz. The high bandwith allows the detection of higher oscillation modes and harmonics. While high resonance frequencies are favourable to measure local energy dissipation processes arising from stochastic force fluctuations the detection of higher harmonics may be used to directly reconstruct the force field from a site-specific measurement performed at a selected surfaces site at one fixed tip-sample distance. The operation of the cantilever with ultrasmall amplitudes not only allows the direct measurement of the local force gradient but is ideal for scanning tunnelling spectroscopy with excellent signal-to-noise ratio necessitated  by ultra-stable tip-sample positioning.