u shud definitely get a security system if money isnt the issue....get that 2 way one .....the 9 something series from STEEL MATE....it definitely gives an edge.
Tires i would suggest yoko Dbs...195/60/15 (these are very close to OEM spec) plus they give a VERY comfortable ride and the biggest plus is the rolling resistance....they have very less of it.
Alloys....try to get genuine light weight ones otherwise stick with the simple OEM black rims. Chinese n Taiwanese alloys are heavy n cause reduction in fuel economy.
When u go to take delivery of ur vehicle be sure to take a high intensity torch light with u to the showroom to check for scratches n swirls....check the side glow from a distance in the reflections by giving the torch to someone else n seeing the reflections to check for swirls standing at a distance.....if ur not sure abt what swirls are then GOOGLE the method for how to check for swirls.
Its not all looks....u must swipe a clean hand over all the surface of the car.....try feeling for any imperfections........u may get a surprise if u feel any of the panels feel more scruffy n not as smooth as others....these maybe buffing imperfections OR Honda guys may be trying to send u off with a delivery damaged-repaired vehicle. Do the needful as required.
Get some good footmats with the car.
Get meguiar's tech wax 2.0 and 2 foam pad applicators from mohsin bhai's outlet in Zamzama n at least 5 genuine micrfibre towels, never ever touch any other cloth on the exterior or interior of the car except a genuine microfibre.