Ready to pull the trigger

Almost decided what funds to invest in:

Wife - how has low appetite for risk
ISA - L&G Multi Index 4 Acc (preferred geographic & asset split and inclusion of property into mix over VGLS 40)
SIPP - Vanguard Lifestrategy 80 (30yr to retirement)

The Daddy - Bigger appetite for risk (or just desirous for bigger return)
ISA - Undecided but its between Blackrock Consensus 85 or Vanguard LS 80 (slightly prefer BR mix over VG but not much in it)
SIPP - VG LS 100 (20yr to retirement)

All funds will have 1K to open then drip fed monthly
(SIPPs @ £100per month + £25 tax relief)
(ISAs @£250per month)

Was ready to pull the trigger this weekend then seen news tonight.
Those Euro paupers Greece that don't / can't pay back their debt gives you that feeling oh is this going to be the match that lights a forest fire and triggers the shares price correction.
Then read this article:
http://www.forbes.com/sites/nathanlewis/2015/06/05/greece-its-time-for-your-default-and-debt-restructuring/
Interesting reading.
Wife now wants to wait 6 weeks and see how this pan out. Don't suppose waiting a few weeks will do any real harm.